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Topic: stereoisomers  (Read 1503 times)

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Offline nikjain

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stereoisomers
« on: January 04, 2013, 12:25:50 PM »
 product should have 6 stereoisomers (2 chiral carbon and one double bond)

but ans. is 4
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Offline discodermolide

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Re: stereoisomers
« Reply #1 on: January 04, 2013, 12:33:02 PM »
Assume the (S) for the optically pure compound then you have (S)(S), (R)(S) cis double bond and (S)(S), (R)(S) trans double bond
6 altogether.
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Offline sjb

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Re: stereoisomers
« Reply #2 on: January 04, 2013, 01:18:42 PM »
Quote from: nikjain on January 04, 2013, 12:25:50 PM
product should have 6 stereoisomers (2 chiral carbon and one double bond)

but ans. is 4

Can you name your proposed 6? 3 asymmetric centres would have a max of 8 isomers (23 not 2 x 3), but some may be excluded for various reason
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