Cyclohexene on reaction with OsO_4 followed b | vedclass

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Question

(A) The reaction of cyclohexene with $OsO_4$ (osmium tetroxide) is a syn-hydroxylation reaction. $OsO_4$ adds to the double bond of the alkene to form

Vedclass · Accepted Answer

cis-diol

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(A) The reaction of cyclohexene with $OsO_4$ (osmium tetroxide) is a syn-hydroxylation reaction. $OsO_4$ adds to the double bond of the alkene to form a cyclic osmate ester intermediate. Subsequent treatment with $NaHSO_3$ (sodium bisulfite) or $H_2O$ hydrolyzes the osmate ester to yield a $cis$-diol. Therefore,the correct product is a $cis$-diol.

Cyclohexene on reaction with $OsO_4$ followed by reaction with $NaHSO_3$ gives

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