Aldehydes Ketones Question 36
Question: The correct product of the following sequence of reactions $ {{(CH_3)}_2}CHCOOH\xrightarrow[(ii)H_2O]{(i)LiAlH_4}\xrightarrow{PBr_3} $ $ \xrightarrow[DMSO]{KCN}\xrightarrow[\Delta ]{H_2{O^{+}},{H^{+}}} $
Options:
A) $ {{( CH_3 )}_2}CHCHBr.COOH $
B) $ {{(CH_3)}_2}CHCH_2COOH $
C) $ {{( CH_3 )}_2}CHCH_2CH_2NH_2 $
D) $ {{( CH_3 )}_2}C=CHCOOH $
Show Answer
Answer:
Correct Answer: B
Solution:
[b] $ -COOH\xrightarrow[H_2O]{LiAlH_4}-CH_2OH\xrightarrow{PBr_3} $
$ -CH_2Br\xrightarrow[DMSO]{KCN}-CH_2CN\xrightarrow[H_2O]{{H^{+}}}-CH_2COOH $
BETA
