Question

Which of the following reaction will give diastereomers as the product(s)?

• A.
• B.
• C.
• D.

Answer 1

Answer: (A), (D)

(a) Bayer's reagent performs syn dihydroxylation and the products obtains are diastereomers (non superimposible).

(b) $B{r}_2/CC{l}_4$ adds to alkene via anti orientation. Here, the products are a pair of enantiomers.

(c) Products obtained are a pair of enantiomers after the anti-addition of $C{l}_2$ (in $CC{l}_4$) to the given alkene.

(d) Anti-addition leads to the formation of diastereomers.