a) Interpretation: Assuming that halogens add to alkynes in the same manner as they add to alkenes , a mechanism is to be proposed and the product(s) expected for the reaction in which two equivalents of Br 2 adds to 2-butyne is/are to be predicted. Concept introduction: Alkynes when treated with one equivalent of a halogen yield a dihaloalkene as the product. They react with two equivalents of the halogens to yield a tetrahaloalkane derivative. In the first step of the addition reaction the nucleophilic attack of the Ï€ electrons of the double/triple bond in alkene/alkyne on a halogen results in the formation of a cyclic halonium ion with the simultaneous elimination of a halide ion. In the second step the halide ion attacks the cyclic halonium ion to yield the product. To propose: A mechanism and to predict the product(s) expected for the reaction in which two equivalents of Br 2 adds to 2-butyne assuming that bromine adds to alkynes in the same manner as they add to alkenes.

Question

Laser. Indicate the relationship between metastable state and stimulated emission.

Answer 1

Question

Chapter 9.SE, Problem 18MP

Interpretation Introduction

a)

Interpretation:

Assuming that halogens add to alkynes in the same manner as they add to alkenes, a mechanism is to be proposed and the product(s) expected for the reaction in which two equivalents of Br₂ adds to 2-butyne is/are to be predicted.

Concept introduction:

Alkynes when treated with one equivalent of a halogen yield a dihaloalkene as the product. They react with two equivalents of the halogens to yield a tetrahaloalkane derivative. In the first step of the addition reaction the nucleophilic attack of the Ï€ electrons of the double/triple bond in alkene/alkyne on a halogen results in the formation of a cyclic halonium ion with the simultaneous elimination of a halide ion. In the second step the halide ion attacks the cyclic halonium ion to yield the product.

To propose:

A mechanism and to predict the product(s) expected for the reaction in which two equivalents of Br₂ adds to 2-butyne assuming that bromine adds to alkynes in the same manner as they add to alkenes.

Interpretation Introduction

b)

Interpretation:

Assuming that halogens add to alkynes in the same manner as they add to alkenes, a mechanism is to be proposed and the product(s) expected for the reaction in which two equivalents of Cl₂ adds to 1-phenylpropyne is/are to be predicted.

Concept introduction:

Alkynes when treated with one equivalent of a halogen yield a dihaloalkene as the product. They react with two equivalents of the reagents to yield a tetrahaloalkane as the product. In the first step of the addition reaction, the nucleophilic attack of the Ï€ electrons of the double/triple bond in alkene/alkyne on a halogen results in the formation of a cyclic halonium ion with the simultaneous elimination of a halide ion. In the second step the halide ion attacks the cyclic halonium ion to yield the product.

To propose:

A mechanism and to predict the product(s) expected for the reaction in which two equivalents of Cl₂ adds to 1-phenylpropyne assuming that chlorine adds to alkynes in the same manner as they add to alkenes.

Interpretation Introduction

c)

Interpretation:

Assuming that halogens add to alkynes in the same manner as they add to alkenes, a mechanism is to be proposed and the product(s) expected for the reaction in which two equivalents of Br₂ adds to 1-pentyne is/are to be predicted.

Concept introduction:

Alkynes when treated with one equivalent of a halogen yield a dihaloalkene as the product. They react with two equivalents of the reagents to yield a tetrahaloalkane as the product. In the first step of the addition reaction the nucleophilic attack of the Ï€ electrons of the double/triple bond in alkene/alkyne on a halogen results in the formation of a cyclic halonium ion with the simultaneous elimination of a halide ion. In the second step the halide ion attacks the cyclic halonium ion to yield the product.

To propose:

A mechanism and to predict the product(s) expected for the reaction in which two equivalents of Br₂ adds to 1-pentyne assuming that bromine adds to alkynes in the same manner as they add to alkenes.

Expert Solution & Answer

Trending nowThis is a popular solution!

See solution

Check out sample textbook solution

Students have asked these similar questions

Laser. Indicate the relationship between metastable state and stimulated emission.

The table includes macrostates characterized by 4 energy levels (&) that are equally spaced but with different degrees of occupation. a) Calculate the energy of all the macrostates (in joules). See if they all have the same energy and number of particles. b) Calculate the macrostate that is most likely to exist. For this macrostate, show that the population of the levels is consistent with the Boltzmann distribution. macrostate 1 macrostate 2 macrostate 3 ε/k (K) Populations Populations Populations 300 5 3 4 200 7 9 8 100 15 17 16 0 33 31 32 DATO: k = 1,38×10-23 J K-1

Don't used Ai solution

Answer 2

Question

Chapter 9.SE, Problem 18MP

Interpretation Introduction

a)

Interpretation:

Assuming that halogens add to alkynes in the same manner as they add to alkenes, a mechanism is to be proposed and the product(s) expected for the reaction in which two equivalents of Br₂ adds to 2-butyne is/are to be predicted.

Concept introduction:

Alkynes when treated with one equivalent of a halogen yield a dihaloalkene as the product. They react with two equivalents of the halogens to yield a tetrahaloalkane derivative. In the first step of the addition reaction the nucleophilic attack of the Ï€ electrons of the double/triple bond in alkene/alkyne on a halogen results in the formation of a cyclic halonium ion with the simultaneous elimination of a halide ion. In the second step the halide ion attacks the cyclic halonium ion to yield the product.

To propose:

A mechanism and to predict the product(s) expected for the reaction in which two equivalents of Br₂ adds to 2-butyne assuming that bromine adds to alkynes in the same manner as they add to alkenes.

Interpretation Introduction

b)

Interpretation:

Assuming that halogens add to alkynes in the same manner as they add to alkenes, a mechanism is to be proposed and the product(s) expected for the reaction in which two equivalents of Cl₂ adds to 1-phenylpropyne is/are to be predicted.

Concept introduction:

Alkynes when treated with one equivalent of a halogen yield a dihaloalkene as the product. They react with two equivalents of the reagents to yield a tetrahaloalkane as the product. In the first step of the addition reaction, the nucleophilic attack of the Ï€ electrons of the double/triple bond in alkene/alkyne on a halogen results in the formation of a cyclic halonium ion with the simultaneous elimination of a halide ion. In the second step the halide ion attacks the cyclic halonium ion to yield the product.

To propose:

A mechanism and to predict the product(s) expected for the reaction in which two equivalents of Cl₂ adds to 1-phenylpropyne assuming that chlorine adds to alkynes in the same manner as they add to alkenes.

Interpretation Introduction

c)

Interpretation:

Assuming that halogens add to alkynes in the same manner as they add to alkenes, a mechanism is to be proposed and the product(s) expected for the reaction in which two equivalents of Br₂ adds to 1-pentyne is/are to be predicted.

Concept introduction:

Alkynes when treated with one equivalent of a halogen yield a dihaloalkene as the product. They react with two equivalents of the reagents to yield a tetrahaloalkane as the product. In the first step of the addition reaction the nucleophilic attack of the Ï€ electrons of the double/triple bond in alkene/alkyne on a halogen results in the formation of a cyclic halonium ion with the simultaneous elimination of a halide ion. In the second step the halide ion attacks the cyclic halonium ion to yield the product.

To propose:

A mechanism and to predict the product(s) expected for the reaction in which two equivalents of Br₂ adds to 1-pentyne assuming that bromine adds to alkynes in the same manner as they add to alkenes.

Expert Solution & Answer

Trending nowThis is a popular solution!

See solution

Check out sample textbook solution

Answer 3

Question

Chapter 9.SE, Problem 18MP

Interpretation Introduction

a)

Interpretation:

Assuming that halogens add to alkynes in the same manner as they add to alkenes, a mechanism is to be proposed and the product(s) expected for the reaction in which two equivalents of Br₂ adds to 2-butyne is/are to be predicted.

Concept introduction:

Alkynes when treated with one equivalent of a halogen yield a dihaloalkene as the product. They react with two equivalents of the halogens to yield a tetrahaloalkane derivative. In the first step of the addition reaction the nucleophilic attack of the Ï€ electrons of the double/triple bond in alkene/alkyne on a halogen results in the formation of a cyclic halonium ion with the simultaneous elimination of a halide ion. In the second step the halide ion attacks the cyclic halonium ion to yield the product.

To propose:

A mechanism and to predict the product(s) expected for the reaction in which two equivalents of Br₂ adds to 2-butyne assuming that bromine adds to alkynes in the same manner as they add to alkenes.

Interpretation Introduction

b)

Interpretation:

Assuming that halogens add to alkynes in the same manner as they add to alkenes, a mechanism is to be proposed and the product(s) expected for the reaction in which two equivalents of Cl₂ adds to 1-phenylpropyne is/are to be predicted.

Concept introduction:

Alkynes when treated with one equivalent of a halogen yield a dihaloalkene as the product. They react with two equivalents of the reagents to yield a tetrahaloalkane as the product. In the first step of the addition reaction, the nucleophilic attack of the Ï€ electrons of the double/triple bond in alkene/alkyne on a halogen results in the formation of a cyclic halonium ion with the simultaneous elimination of a halide ion. In the second step the halide ion attacks the cyclic halonium ion to yield the product.

To propose:

A mechanism and to predict the product(s) expected for the reaction in which two equivalents of Cl₂ adds to 1-phenylpropyne assuming that chlorine adds to alkynes in the same manner as they add to alkenes.

Interpretation Introduction

c)

Interpretation:

Assuming that halogens add to alkynes in the same manner as they add to alkenes, a mechanism is to be proposed and the product(s) expected for the reaction in which two equivalents of Br₂ adds to 1-pentyne is/are to be predicted.

Concept introduction:

Alkynes when treated with one equivalent of a halogen yield a dihaloalkene as the product. They react with two equivalents of the reagents to yield a tetrahaloalkane as the product. In the first step of the addition reaction the nucleophilic attack of the Ï€ electrons of the double/triple bond in alkene/alkyne on a halogen results in the formation of a cyclic halonium ion with the simultaneous elimination of a halide ion. In the second step the halide ion attacks the cyclic halonium ion to yield the product.

To propose:

A mechanism and to predict the product(s) expected for the reaction in which two equivalents of Br₂ adds to 1-pentyne assuming that bromine adds to alkynes in the same manner as they add to alkenes.

Expert Solution & Answer

Trending nowThis is a popular solution!

See solution

Check out sample textbook solution

Answer 4

Question

Chapter 9.SE, Problem 18MP

Interpretation Introduction

a)

Interpretation:

Assuming that halogens add to alkynes in the same manner as they add to alkenes, a mechanism is to be proposed and the product(s) expected for the reaction in which two equivalents of Br₂ adds to 2-butyne is/are to be predicted.

Concept introduction:

Alkynes when treated with one equivalent of a halogen yield a dihaloalkene as the product. They react with two equivalents of the halogens to yield a tetrahaloalkane derivative. In the first step of the addition reaction the nucleophilic attack of the Ï€ electrons of the double/triple bond in alkene/alkyne on a halogen results in the formation of a cyclic halonium ion with the simultaneous elimination of a halide ion. In the second step the halide ion attacks the cyclic halonium ion to yield the product.

To propose:

A mechanism and to predict the product(s) expected for the reaction in which two equivalents of Br₂ adds to 2-butyne assuming that bromine adds to alkynes in the same manner as they add to alkenes.

Interpretation Introduction

b)

Interpretation:

Assuming that halogens add to alkynes in the same manner as they add to alkenes, a mechanism is to be proposed and the product(s) expected for the reaction in which two equivalents of Cl₂ adds to 1-phenylpropyne is/are to be predicted.

Concept introduction:

Alkynes when treated with one equivalent of a halogen yield a dihaloalkene as the product. They react with two equivalents of the reagents to yield a tetrahaloalkane as the product. In the first step of the addition reaction, the nucleophilic attack of the Ï€ electrons of the double/triple bond in alkene/alkyne on a halogen results in the formation of a cyclic halonium ion with the simultaneous elimination of a halide ion. In the second step the halide ion attacks the cyclic halonium ion to yield the product.

To propose:

A mechanism and to predict the product(s) expected for the reaction in which two equivalents of Cl₂ adds to 1-phenylpropyne assuming that chlorine adds to alkynes in the same manner as they add to alkenes.

Interpretation Introduction

c)

Interpretation:

Assuming that halogens add to alkynes in the same manner as they add to alkenes, a mechanism is to be proposed and the product(s) expected for the reaction in which two equivalents of Br₂ adds to 1-pentyne is/are to be predicted.

Concept introduction:

Alkynes when treated with one equivalent of a halogen yield a dihaloalkene as the product. They react with two equivalents of the reagents to yield a tetrahaloalkane as the product. In the first step of the addition reaction the nucleophilic attack of the Ï€ electrons of the double/triple bond in alkene/alkyne on a halogen results in the formation of a cyclic halonium ion with the simultaneous elimination of a halide ion. In the second step the halide ion attacks the cyclic halonium ion to yield the product.

To propose:

A mechanism and to predict the product(s) expected for the reaction in which two equivalents of Br₂ adds to 1-pentyne assuming that bromine adds to alkynes in the same manner as they add to alkenes.

Expert Solution & Answer

Trending nowThis is a popular solution!

See solution

Check out sample textbook solution

Answer 5

Chapter 9.SE, Problem 18MP

Interpretation Introduction

a)

Interpretation:

Assuming that halogens add to alkynes in the same manner as they add to alkenes, a mechanism is to be proposed and the product(s) expected for the reaction in which two equivalents of Br₂ adds to 2-butyne is/are to be predicted.

Concept introduction:

Alkynes when treated with one equivalent of a halogen yield a dihaloalkene as the product. They react with two equivalents of the halogens to yield a tetrahaloalkane derivative. In the first step of the addition reaction the nucleophilic attack of the Ï€ electrons of the double/triple bond in alkene/alkyne on a halogen results in the formation of a cyclic halonium ion with the simultaneous elimination of a halide ion. In the second step the halide ion attacks the cyclic halonium ion to yield the product.

To propose:

A mechanism and to predict the product(s) expected for the reaction in which two equivalents of Br₂ adds to 2-butyne assuming that bromine adds to alkynes in the same manner as they add to alkenes.

Interpretation Introduction

b)

Interpretation:

Assuming that halogens add to alkynes in the same manner as they add to alkenes, a mechanism is to be proposed and the product(s) expected for the reaction in which two equivalents of Cl₂ adds to 1-phenylpropyne is/are to be predicted.

Concept introduction:

Alkynes when treated with one equivalent of a halogen yield a dihaloalkene as the product. They react with two equivalents of the reagents to yield a tetrahaloalkane as the product. In the first step of the addition reaction, the nucleophilic attack of the Ï€ electrons of the double/triple bond in alkene/alkyne on a halogen results in the formation of a cyclic halonium ion with the simultaneous elimination of a halide ion. In the second step the halide ion attacks the cyclic halonium ion to yield the product.

To propose:

A mechanism and to predict the product(s) expected for the reaction in which two equivalents of Cl₂ adds to 1-phenylpropyne assuming that chlorine adds to alkynes in the same manner as they add to alkenes.

Interpretation Introduction

c)

Interpretation:

Assuming that halogens add to alkynes in the same manner as they add to alkenes, a mechanism is to be proposed and the product(s) expected for the reaction in which two equivalents of Br₂ adds to 1-pentyne is/are to be predicted.

Concept introduction:

Alkynes when treated with one equivalent of a halogen yield a dihaloalkene as the product. They react with two equivalents of the reagents to yield a tetrahaloalkane as the product. In the first step of the addition reaction the nucleophilic attack of the Ï€ electrons of the double/triple bond in alkene/alkyne on a halogen results in the formation of a cyclic halonium ion with the simultaneous elimination of a halide ion. In the second step the halide ion attacks the cyclic halonium ion to yield the product.

To propose:

A mechanism and to predict the product(s) expected for the reaction in which two equivalents of Br₂ adds to 1-pentyne assuming that bromine adds to alkynes in the same manner as they add to alkenes.

Answer 6

Chapter 9.SE, Problem 18MP

Interpretation Introduction

a)

Interpretation:

Assuming that halogens add to alkynes in the same manner as they add to alkenes, a mechanism is to be proposed and the product(s) expected for the reaction in which two equivalents of Br₂ adds to 2-butyne is/are to be predicted.

Concept introduction:

Alkynes when treated with one equivalent of a halogen yield a dihaloalkene as the product. They react with two equivalents of the halogens to yield a tetrahaloalkane derivative. In the first step of the addition reaction the nucleophilic attack of the Ï€ electrons of the double/triple bond in alkene/alkyne on a halogen results in the formation of a cyclic halonium ion with the simultaneous elimination of a halide ion. In the second step the halide ion attacks the cyclic halonium ion to yield the product.

To propose:

A mechanism and to predict the product(s) expected for the reaction in which two equivalents of Br₂ adds to 2-butyne assuming that bromine adds to alkynes in the same manner as they add to alkenes.

Answer 7

Chapter 9.SE, Problem 18MP

Interpretation Introduction

a)

Interpretation:

Assuming that halogens add to alkynes in the same manner as they add to alkenes, a mechanism is to be proposed and the product(s) expected for the reaction in which two equivalents of Br₂ adds to 2-butyne is/are to be predicted.

Concept introduction:

Alkynes when treated with one equivalent of a halogen yield a dihaloalkene as the product. They react with two equivalents of the halogens to yield a tetrahaloalkane derivative. In the first step of the addition reaction the nucleophilic attack of the Ï€ electrons of the double/triple bond in alkene/alkyne on a halogen results in the formation of a cyclic halonium ion with the simultaneous elimination of a halide ion. In the second step the halide ion attacks the cyclic halonium ion to yield the product.

To propose:

A mechanism and to predict the product(s) expected for the reaction in which two equivalents of Br₂ adds to 2-butyne assuming that bromine adds to alkynes in the same manner as they add to alkenes.

Answer 8

Interpretation Introduction

b)

Interpretation:

Assuming that halogens add to alkynes in the same manner as they add to alkenes, a mechanism is to be proposed and the product(s) expected for the reaction in which two equivalents of Cl₂ adds to 1-phenylpropyne is/are to be predicted.

Concept introduction:

Alkynes when treated with one equivalent of a halogen yield a dihaloalkene as the product. They react with two equivalents of the reagents to yield a tetrahaloalkane as the product. In the first step of the addition reaction, the nucleophilic attack of the Ï€ electrons of the double/triple bond in alkene/alkyne on a halogen results in the formation of a cyclic halonium ion with the simultaneous elimination of a halide ion. In the second step the halide ion attacks the cyclic halonium ion to yield the product.

To propose:

A mechanism and to predict the product(s) expected for the reaction in which two equivalents of Cl₂ adds to 1-phenylpropyne assuming that chlorine adds to alkynes in the same manner as they add to alkenes.

Answer 9

Interpretation Introduction

b)

Interpretation:

Assuming that halogens add to alkynes in the same manner as they add to alkenes, a mechanism is to be proposed and the product(s) expected for the reaction in which two equivalents of Cl₂ adds to 1-phenylpropyne is/are to be predicted.

Concept introduction:

Alkynes when treated with one equivalent of a halogen yield a dihaloalkene as the product. They react with two equivalents of the reagents to yield a tetrahaloalkane as the product. In the first step of the addition reaction, the nucleophilic attack of the Ï€ electrons of the double/triple bond in alkene/alkyne on a halogen results in the formation of a cyclic halonium ion with the simultaneous elimination of a halide ion. In the second step the halide ion attacks the cyclic halonium ion to yield the product.

To propose:

A mechanism and to predict the product(s) expected for the reaction in which two equivalents of Cl₂ adds to 1-phenylpropyne assuming that chlorine adds to alkynes in the same manner as they add to alkenes.

Answer 10

Interpretation Introduction

c)

Interpretation:

Assuming that halogens add to alkynes in the same manner as they add to alkenes, a mechanism is to be proposed and the product(s) expected for the reaction in which two equivalents of Br₂ adds to 1-pentyne is/are to be predicted.

Concept introduction:

Alkynes when treated with one equivalent of a halogen yield a dihaloalkene as the product. They react with two equivalents of the reagents to yield a tetrahaloalkane as the product. In the first step of the addition reaction the nucleophilic attack of the Ï€ electrons of the double/triple bond in alkene/alkyne on a halogen results in the formation of a cyclic halonium ion with the simultaneous elimination of a halide ion. In the second step the halide ion attacks the cyclic halonium ion to yield the product.

To propose:

A mechanism and to predict the product(s) expected for the reaction in which two equivalents of Br₂ adds to 1-pentyne assuming that bromine adds to alkynes in the same manner as they add to alkenes.

Answer 11

Interpretation Introduction

c)

Interpretation:

Assuming that halogens add to alkynes in the same manner as they add to alkenes, a mechanism is to be proposed and the product(s) expected for the reaction in which two equivalents of Br₂ adds to 1-pentyne is/are to be predicted.

Concept introduction:

Alkynes when treated with one equivalent of a halogen yield a dihaloalkene as the product. They react with two equivalents of the reagents to yield a tetrahaloalkane as the product. In the first step of the addition reaction the nucleophilic attack of the Ï€ electrons of the double/triple bond in alkene/alkyne on a halogen results in the formation of a cyclic halonium ion with the simultaneous elimination of a halide ion. In the second step the halide ion attacks the cyclic halonium ion to yield the product.

To propose:

A mechanism and to predict the product(s) expected for the reaction in which two equivalents of Br₂ adds to 1-pentyne assuming that bromine adds to alkynes in the same manner as they add to alkenes.

Answer 12

Expert Solution & Answer

Answer 13

Expert Solution & Answer

Answer 14

Trending nowThis is a popular solution!

See solution

Check out sample textbook solution

Answer 15

Trending nowThis is a popular solution!

See solution

Check out sample textbook solution

Answer 16

Trending nowThis is a popular solution!

See solution

Check out sample textbook solution

Answer 17

Trending nowThis is a popular solution!

Answer 18

Trending nowThis is a popular solution!

Answer 19

Trending nowThis is a popular solution!

Answer 20

Trending now

Answer 21

This is a popular solution!

Answer 22

See solution

Check out sample textbook solution

Answer 23

Ch. 9.1 - Prob. 1P Ch. 9.1 - Prob. 2P Ch. 9.3 - What products would you expect from the following...Ch. 9.4 - Prob. 4P Ch. 9.4 - Prob. 5P Ch. 9.4 - Prob. 6P Ch. 9.4 - Prob. 7P Ch. 9.5 - Using any alkyne needed, how would you prepare the...Ch. 9.7 - The pKa of acetone, CH3COCH3, is 19.3. Which of...Ch. 9.8 - Prob. 10P

Solution Summary: The author proposes a mechanism and predicts the product(s) expected for the reaction in which two equivalents of Br 2 add to 2-butyne.

Chapter 9 Solutions