Chemistry - STEREO ISOMERISM Question with Solution | TestHub

ChemistrySTEREO ISOMERISMCALCULATION OF TOTAL STEREOISOMERSMedium2 minQB
ChemistryMediumsingle choice

Just for fun, you might like to try and work out just how many diastereoisomers inositol has and how many of them are meso compounds.

structure inositol

Options:

Answer:
A
Solution:

Ans. (A) Total stereoisomers = 9, meso = 7.

Sol. Inositol is cyclohexane-1,2,3,4,5,6-hexol: six stereocentres with identical substituents on a symmetric ring. Enumerating the 26 = 64 up/down patterns modulo the ring's rotations and reflections gives 9 distinct stereoisomers: 7 are meso (achiral, with an internal plane or centre of symmetry) and the remaining 2 form one enantiomeric pair.

Stream:JEESubject:ChemistryTopic:STEREO ISOMERISMSubtopic:CALCULATION OF TOTAL STEREOISOMERS
⏱ 2mℹ️ Source: QB

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