Synthesis of butane-2,3-diol from cis-2-butene may be accomplished in two ways: (i) OsO4 hydroxylation & (ii) C6H5CO3H epoxidation followed by NaOH opening of the epoxide ring.
Which of the following statements about the products from these reactions is correct?
A. the two methods giive the same product
B. two different isomers are formed, but both are chiral
C.(i) gives a chiral isomer (racemic) (ii) gives an achiral isomer
D. (i) gives an achiral isomer, (ii) gives a chiral isomer (racemic)