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Qu 8. How many stereoisomers of 2,4-dibromo-3-chlorpentane are there? Draw them and indicate which are optically active. CH3 S CH3 R CH3 S CH3 R H Br Br H H Br Br H H ICI CI H CI H H ICI H Br Br H Br Br R CH3 A H S S R CH3 B CH3 CH3 D C There are four stereoisomers: C and D are enantiomers and are optically active. A and B are meso compounds and are therefore optically inactive. 52- (iv) S H₂C H3CH2C 3 OH COCH3 2

Qu 8. How many stereoisomers of 2,4-dibromo-3-chlorpentane are there? Draw them and indicate which are optically active. CH3 S CH3 R CH3 S CH3 R H Br Br H H Br Br H H ICI CI H CI H H ICI H Br Br H Br Br R CH3 A H S S R CH3 B CH3 CH3 D C There are four stereoisomers: C and D are enantiomers and are optically active. A and B are meso compounds and are therefore optically inactive. 52- (iv) S H₂C H3CH2C 3 OH COCH3 2

EBK A SMALL SCALE APPROACH TO ORGANIC L
EBK A SMALL SCALE APPROACH TO ORGANIC L
4th Edition
ISBN:9781305446021
Author:Lampman
Publisher:Lampman
Chapter37: The Aldol Condensation Reaction: Preparation Of Benzalacetophenones (chalcones)
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Chemistry first I cannot understand why this is a R isomer second I cannot understand the answer why the meso compounds considered as optically active even though they are optically inactive and why diastereomers cannot mention on this answer?
Qu 8. How many stereoisomers of 2,4-dibromo-3-chlorpentane are there? Draw them and indicate which are optically active. CH3 S CH3 R CH3 S CH3 R H Br Br H H Br Br H H ICI CI H CI H H ICI H Br Br H Br Br R CH3 A H S S R CH3 B CH3 CH3 D C There are four stereoisomers: C and D are enantiomers and are optically active. A and B are meso compounds and are therefore optically inactive.
Transcribed Image Text:Qu 8. How many stereoisomers of 2,4-dibromo-3-chlorpentane are there? Draw them and indicate which are optically active. CH3 S CH3 R CH3 S CH3 R H Br Br H H Br Br H H ICI CI H CI H H ICI H Br Br H Br Br R CH3 A H S S R CH3 B CH3 CH3 D C There are four stereoisomers: C and D are enantiomers and are optically active. A and B are meso compounds and are therefore optically inactive.
52- (iv) S H₂C H3CH2C 3 OH COCH3 2
Transcribed Image Text:52- (iv) S H₂C H3CH2C 3 OH COCH3 2
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