Question

Hydroxylation of cis-2-butene by OsO4 gives

a) meso-butan-2,3- diol b) (dl)-butan2,3-diol c) meso-tartaric acid d) tartaric acid​

Answer 1

I don't know

sorry

hi friend

good morning

Answer 2

The correct option is a.

• Hydroxylation by osmium tetraoxide is a syn hydroxylation reaction or the same phase hydroxylation.
• Optically inactive structures are called meso structures.
• Cis-butan-2,3-diol on reaction with osmium tetraoxide is a syn hydroxylation reaction.
• In this reaction cis-butan-2,3-diol on reaction with osmium tetraoxide form meso-butan-2,3- diol which is an optically inactive form.
• Hence the correct option is a.