The reason behind the formation of a conjugate diene by dehydrohalogenation of 1,2-dibromocyclcohexane, when, generally, dehydrohalogenation of dihalides leads to alkynes instead of conjugated dienes, is to be explained. Concept introduction: 舧 Electrophiles are electron-deficient species, which has positive or partially positive charge. Lewis acids are electrophiles, which accept electron pair. 舧 Nucleophiles are electron-rich species, which has negative or partially negative charge. Lewis bases are nucleophiles, which donate electron pair. 舧 Free radical is an atom, molecule, or ion that has an unpaired electron, which makes it highly chemically reactive. 舧 Substitution reaction: A reaction in which one of the hydrogen atoms of a hydrocarbon or a functional group is substituted by any other functional group is called substitution reaction. 舧 Elimination reaction: A reaction in which two substituent groups are detached and a double bond is formed is called elimination reaction. 舧 Addition reaction: It is the reaction in which unsaturated bonds are converted to saturated molecules by the addition of molecules. 舧 The reaction in which the halide group and hydrogen group are removed to form alkene is called dehydrohalogenation. 舧 The reaction in which hydrogen is added to the compound in the presence of catalyst is known as hydrogenation. 舧 The number of moles of hydrogen absorbed will be equal to the number of double bonds. 舧 Alkynes are synthesized by dehydrohalogenation of dihalides using a strong base and a strong nucleophile via E2 elimination reaction. 舧 The linear nature of the C − C ≡ C − C alkyne group in a six-membered cyclic chain puts high strain on a cyclic six-membered hydrocarbon.

Question

Want to see the full answer?

Answer 1

Question

Chapter 13, Problem 34P

Interpretation Introduction

Interpretation:

The reason behind the formation of a conjugate diene by dehydrohalogenation of 1,2-dibromocyclcohexane, when, generally, dehydrohalogenation of dihalides leads to alkynes instead of conjugated dienes, is to be explained.

Concept introduction:

舧 Electrophiles are electron-deficient species, which has positive or partially positive charge. Lewis acids are electrophiles, which accept electron pair.

舧 Nucleophiles are electron-rich species, which has negative or partially negative charge. Lewis bases are nucleophiles, which donate electron pair.

舧 Free radical is an atom, molecule, or ion that has an unpaired electron, which makes it highly chemically reactive.

舧 Substitution reaction: A reaction in which one of the hydrogen atoms of a hydrocarbon or a functional group is substituted by any other functional group is called substitution reaction.

舧 Elimination reaction: A reaction in which two substituent groups are detached and a double bond is formed is called elimination reaction.

舧 Addition reaction: It is the reaction in which unsaturated bonds are converted to saturated molecules by the addition of molecules.

舧 The reaction in which the halide group and hydrogen group are removed to form alkene is called dehydrohalogenation.

舧 The reaction in which hydrogen is added to the compound in the presence of catalyst is known as hydrogenation.

舧 The number of moles of hydrogen absorbed will be equal to the number of double bonds.

舧 Alkynes are synthesized by dehydrohalogenation of dihalides using a strong base and a strong nucleophile via E2 elimination reaction.

舧 The linear nature of the C−C≡C−C alkyne group in a six-membered cyclic chain puts high strain on a cyclic six-membered hydrocarbon.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Students have asked these similar questions

Curved arrows are used to illustrate the flow of electrons. Using the provided structures, draw the curved arrows that epict the mechanistic steps for the proton transfer between a hydronium ion and a pi bond. Draw any missing organic structures in the empty boxes. Be sure to account for all lone-pairs and charges as well as bond-breaking and bond-making steps. 2 56°F Mostly cloudy F1 Drawing Arrows > Q Search F2 F3 F4 ▷11 H. H : CI: H + Undo Reset Done DELL

Calculate the chemical shifts in 13C and 1H NMR for 4-chloropropiophenone ? Write structure and label hydrogens and carbons. Draw out the benzene ring structure when doing it

1) Calculate the longest and shortest wavelengths in the Lyman and Paschen series. 2) Calculate the ionization energy of He* and L2+ ions in their ground states. 3) Calculate the kinetic energy of the electron emitted upon irradiation of a H-atom in ground state by a 50-nm radiation.