Q.
Which set of reagent(s) in correct order would accomplish the following transformation?
1-pentyne $\stackrel{ I }{\longrightarrow } \stackrel{ II }{\longrightarrow }$ Cis-2-hexene
I
II
(a)
$NaNH _{2} / NH _{3}(l), CH _{3} I$
Lindlar’s catalyst
(b)
$KOH , THF , CH _{3} I$
$H _{2} / Pd / C$
(c)
$H _{2} /$ Lindlar's catalyst
$NaNH _{2} / THF , CH _{3} I$
(d)
$BH_3-THF,H_2O_2/NaOH$
$H _{2} SO _{4}$
| I | II | ||
|---|---|---|---|
| (a) | $NaNH _{2} / NH _{3}(l), CH _{3} I$ | Lindlar’s catalyst | |
| (b) | $KOH , THF , CH _{3} I$ | $H _{2} / Pd / C$ | |
| (c) | $H _{2} /$ Lindlar's catalyst | $NaNH _{2} / THF , CH _{3} I$ | |
| (d) | $BH_3-THF,H_2O_2/NaOH$ | $H _{2} SO _{4}$ | |
Hydrocarbons
Solution:
Correct answer is (a) 1
