CH_3-C(CH_3)(OH)-C(CH_3)(OH)-CH_3 xrightarrow | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(B) The reaction is an example of the Pinacol-Pinacolone rearrangement.In the presence of an acid $(H^{+})$,$2,3$-dimethylbutane-$2,3$-diol (Pinacol)

Vedclass · Accepted Answer

$3,3-$dimethylbutan$-2-$one (structure)

Vedclass · Answer

(B) The reaction is an example of the Pinacol-Pinacolone rearrangement.In the presence of an acid $(H^{+})$,$2,3$-dimethylbutane-$2,3$-diol (Pinacol) undergoes dehydration and rearrangement to form $3,3$-dimethylbutan-$2$-one (Pinacolone).The mechanism involves the protonation of one of the hydroxyl groups,followed by the loss of a water molecule to form a carbocation.Then,a methyl group shifts to the adjacent carbon atom,followed by the loss of a proton to form the final ketone product,$CH_3-CO-C(CH_3)_3$.

$CH_3-C(CH_3)(OH)-C(CH_3)(OH)-CH_3 \xrightarrow[H^{+}]{\Delta} ?$

Similar Questions

Which of the following methods can be used to prepare acetophenone?

In the following sequence of reactions,what is the end product $(D)$?
$C_2H_5Br$ $\xrightarrow{KCN} A$ $\xrightarrow{H_3O^{+}} B$ $\xrightarrow{LiAlH_4} C$ $\xrightarrow[573 \ K]{Cu} D$.

Conversion of esters to aldehydes can be accomplished by

Consider the following reactions:
$C_2H_2 + H_2O \xrightarrow[333 \ K]{Hg^{2+} / H^{+}} [X] \stackrel{\text{Isomerisation}}{\rightleftharpoons} Y$
$Y$ cannot be obtained from which of the following reactions?

What is $A$ in the following reaction?
$CH_3-CH=CH-CH_2-CH_2-CN \xrightarrow[\text{2) } H_2O]{\text{1) } AlH(i-Bu)_2} (A)$

Vedclass Test Series

Exam Paper Generator

Online Exam Module