ORGANIC CHEMISTRY-NEXTGEN+BOX (2 SEM.)
ORGANIC CHEMISTRY-NEXTGEN+BOX (2 SEM.)
3rd Edition
ISBN: 9781119497479
Author: Klein
Publisher: WILEY
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Chapter 5.9, Problem 28CC

(a)

Interpretation Introduction

Interpretation:

Check whether the given allene is chiral or achiral.

Concept Introduction:

Allenes are compounds with two or more double bonds side-by side. Such bonds are called cumulated double bonds.

ORGANIC CHEMISTRY-NEXTGEN+BOX (2 SEM.), Chapter 5.9, Problem 28CC , additional homework tip  1

Chiral centre: A chiral centre is defined as the tetrahedral carbon atom in an organic molecule that is connected to four non-identical groups/substituents. It is sometimes known as a stereo genic centre.

An achiral carbon is a carbon having two or more identical groups around it.

Chirality: The geometric property of molecules where the structure of the molecule and its mirror image are not superimposable is known as chirality. Chiral molecules are optically active and they can rotate the plane polarized light.

Allenes shows axial chirality. Axial chirality is a stereoisomerism resulting from the non-planar arrangement of four groups in pairs about a chiral axis.

Example:

ORGANIC CHEMISTRY-NEXTGEN+BOX (2 SEM.), Chapter 5.9, Problem 28CC , additional homework tip  2

Here cumulated π bonds of an allene lie in perpendicular planes and so unsymmetrically substituted allenes are chiral.

(b)

Interpretation Introduction

Interpretation:

Check whether the given allene is chiral or achiral.

Concept Introduction:

Allenes are compounds with two or more double bonds side-by side. Such bonds are called cumulated double bonds.

ORGANIC CHEMISTRY-NEXTGEN+BOX (2 SEM.), Chapter 5.9, Problem 28CC , additional homework tip  3

Chiral centre: A chiral centre is defined as the tetrahedral carbon atom in an organic molecule that is connected to four non-identical groups/substituents. It is sometimes known as a stereo genic centre.

An achiral carbon is a carbon having two or more identical groups around it.

Chirality: The geometric property of molecules where the structure of the molecule and its mirror image are not superimposable is known as chirality. Chiral molecules are optically active and they can rotate the plane polarized light.

Allenes shows axial chirality. Axial chirality is a stereoisomerism resulting from the non-planar arrangement of four groups in pairs about a chiral axis.

Example:

ORGANIC CHEMISTRY-NEXTGEN+BOX (2 SEM.), Chapter 5.9, Problem 28CC , additional homework tip  4

Here cumulated π bonds of an allene lie in perpendicular planes and so unsymmetrically substituted allenes are chiral.

(c)

Interpretation Introduction

Interpretation:

Check whether the given allene is chiral or achiral.

Concept Introduction:

Allenes are compounds with two or more double bonds side-by side. Such bonds are called cumulated double bonds.

ORGANIC CHEMISTRY-NEXTGEN+BOX (2 SEM.), Chapter 5.9, Problem 28CC , additional homework tip  5

Chiral centre: A chiral centre is defined as the tetrahedral carbon atom in an organic molecule that is connected to four non-identical groups/substituents. It is sometimes known as a stereo genic centre.

An achiral carbon is a carbon having two or more identical groups around it.

Chirality: The geometric property of molecules where the structure of the molecule and its mirror image are not superimposable is known as chirality. Chiral molecules are optically active and they can rotate the plane polarized light.

Allenes shows axial chirality. Axial chirality is a stereoisomerism resulting from the non-planar arrangement of four groups in pairs about a chiral axis.

Example:

ORGANIC CHEMISTRY-NEXTGEN+BOX (2 SEM.), Chapter 5.9, Problem 28CC , additional homework tip  6

Here cumulated π bonds of an allene lie in perpendicular planes and so unsymmetrically substituted allenes are chiral.

(d)

Interpretation Introduction

Interpretation:

Check whether the given allene is chiral or achiral.

Concept Introduction:

Allenes are compounds with two or more double bonds side-by side. Such bonds are called cumulated double bonds.

ORGANIC CHEMISTRY-NEXTGEN+BOX (2 SEM.), Chapter 5.9, Problem 28CC , additional homework tip  7

Chiral centre: A chiral centre is defined as the tetrahedral carbon atom in an organic molecule that is connected to four non-identical groups/substituents. It is sometimes known as a stereo genic centre.

An achiral carbon is a carbon having two or more identical groups around it.

Chirality: The geometric property of molecules where the structure of the molecule and its mirror image are not superimposable is known as chirality. Chiral molecules are optically active and they can rotate the plane polarized light.

Allenes shows axial chirality. Axial chirality is a stereoisomerism resulting from the non-planar arrangemen6t of four groups in pairs about a chiral axis.

Example:

ORGANIC CHEMISTRY-NEXTGEN+BOX (2 SEM.), Chapter 5.9, Problem 28CC , additional homework tip  8

Here cumulated π bonds of an allene lie in perpendicular planes and so unsymmetrically substituted allenes are chiral.

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Assign R or S to all the chiral centers in each compound drawn below porat bg 9 Br Br

Chapter 5 Solutions

ORGANIC CHEMISTRY-NEXTGEN+BOX (2 SEM.)

Ch. 5.3 - Prob. 3LTSCh. 5.3 - Prob. 9PTSCh. 5.3 - Prob. 10ATSCh. 5.4 - Prob. 4LTSCh. 5.4 - Prob. 11PTSCh. 5.4 - Prob. 12PTSCh. 5.4 - Prob. 13PTSCh. 5.4 - Prob. 14ATSCh. 5.4 - Prob. 5LTSCh. 5.4 - Prob. 15PTSCh. 5.4 - Prob. 16PTSCh. 5.4 - Prob. 17PTSCh. 5.4 - Prob. 18ATSCh. 5.5 - Prob. 6LTSCh. 5.5 - Prob. 19PTSCh. 5.5 - Prob. 20ATSCh. 5.6 - Prob. 21CCCh. 5.6 - Prob. 22CCCh. 5.6 - Prob. 23CCCh. 5.6 - Prob. 7LTSCh. 5.6 - Prob. 24PTSCh. 5.6 - Prob. 25ATSCh. 5.7 - Prob. 8LTSCh. 5.7 - Prob. 26PTSCh. 5.7 - Protease inhibitors are a class of anti-viral...Ch. 5.9 - Prob. 28CCCh. 5.11 - Prob. 9LTSCh. 5.11 - Prob. 29PTSCh. 5.11 - Prob. 30ATSCh. 5 - Prob. 31PPCh. 5 - Prob. 32PPCh. 5 - Prob. 33PPCh. 5 - Prob. 34PPCh. 5 - Prob. 35PPCh. 5 - Prob. 36PPCh. 5 - Prob. 37PPCh. 5 - Prob. 38PPCh. 5 - Prob. 39PPCh. 5 - Prob. 40PPCh. 5 - Prob. 41PPCh. 5 - Prob. 42PPCh. 5 - Prob. 43PPCh. 5 - Prob. 44PPCh. 5 - Prob. 45PPCh. 5 - Prob. 46PPCh. 5 - Prob. 47PPCh. 5 - Prob. 48PPCh. 5 - Prob. 49PPCh. 5 - Prob. 50PPCh. 5 - Prob. 51PPCh. 5 - Prob. 52PPCh. 5 - For each of the following pairs of compounds,...Ch. 5 - Prob. 54PPCh. 5 - Prob. 55PPCh. 5 - Prob. 56PPCh. 5 - Prob. 57IPCh. 5 - Prob. 58IPCh. 5 - Prob. 59IPCh. 5 - Prob. 60IPCh. 5 - There are only two stereoisomers of...Ch. 5 - Prob. 62IPCh. 5 - Prob. 63IPCh. 5 - Prob. 64IPCh. 5 - Prob. 65IPCh. 5 - Prob. 66IPCh. 5 - Prob. 67IPCh. 5 - Prob. 68IPCh. 5 - Prob. 69IPCh. 5 - Prob. 70IPCh. 5 - Prob. 71IPCh. 5 - Prob. 72IPCh. 5 - Prob. 73IPCh. 5 - Prob. 74IPCh. 5 - Prob. 75IPCh. 5 - Prob. 76IPCh. 5 - Prob. 77CPCh. 5 - Prob. 78CPCh. 5 - Prob. 79CPCh. 5 - Prob. 80CP
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