JEE PYQ: Aldehydes And Ketones Question 34
Question 34 - 2019 (09 Jan Shift 1)
$\text{R-C}\equiv\text{N} \xrightarrow{\text{(i) AlH(i-Bu)}_2, \text{(ii) H}_2\text{O}}$ ?
(1). (RCOOH)
(2). (RCONH$_2$)
(3). (RCHO)
(4). (RCH$_2$NH$_2$)
Show Answer
Answer: (3)
Solution
DIBAL-H (diisobutylaluminium hydride) reduces nitriles to aldehydes at low temperature.