question_answer

Which reagent is used for the conversion of  (A) to (B)?

A)  \[{{H}_{2}}+[RhCl{{(P{{h}_{3}}P)}_{3}}]\]                            

B)  \[N{{H}_{2}}N{{H}_{2}}+{{O}_{2}}\]

C)  MMPP in ethanol /\[{{H}_{3}}{{O}^{\oplus }}\]                       

D)   \[Si{{a}_{2}}BH+C{{H}_{3}}COOH\]

Correct Answer: D

Solution :

[d] (1) and (2) reduce both the \[(C=\,=C)\] to \[(C-C)\](syn-addition).

(3) Anti-hydroxylation of both \[(C=\,=C)\]  to

(4) Reduces only unhindered \[(C=\,=C)\]  to \[(C-C)\].