Alcohols Phenols And Ethers Question 96
Question: Which of the following synthesis gives 3 -methyl. 1- hexanol-
Options:
A) 2- bromohexane $ \xrightarrow[C_2H_5OC_2H_5]{Mg}\xrightarrow[(ii)H_3{O^{+}}]{(i)H_2C=O} $
B) 2- bromopentane $ \xrightarrow[C_2H_5OC_2H_5]{Mg} $
C) 3- bromopantane $ \xrightarrow[C_2H_5OC_2H_5]{Mg} $ $ \xrightarrow[(ii)H_3{O^{+}}]{(i)CH_3CH=O} $
D) 1- bromobutane $ \xrightarrow[C_2H_5OC_2H_5]{Mg} $ $ \xrightarrow[(ii)H_3{O^{+}}]{(i)CH_3COCH_3} $
Show Answer
Answer:
Correct Answer: B
Solution:
[b] $ CH_3-\underset{Br}{\mathop{\underset{|}{\mathop{C}}}}H-CH_2-CH_2-CH_3\xrightarrow[{{(C_2H_5)}_2}O]{Mg} $
$ \xrightarrow{H_3{O^{+}}}CH_3-\underset{CH_2.CH_2OH}{\mathop{\underset{|}{\mathop{C}}}}H-CH_2-CH_2-CH_3 $
BETA
