question_answer

A compound (X) on ozonolysis followed by reduction gives an aldehyde, \[{{C}_{2}}{{H}_{4}}O\] and 2-butanone, compound (X) is

A) 3-methylpentene-2

B) 3-methylpentene-3

C) 3-methylhexene-3

D) 3-ethylpentene-3

Correct Answer: A

Solution :

According to the given data,

\[\operatorname{X}\xrightarrow[\left( ii \right)Zn/AcOH]{\left( i \right){{O}_{3}}}C\underset{\operatorname{Aldehyde}}{\mathop{_{2}{{H}_{4}}O+C{{H}_{3}}}}\,\underset{2-Butanone}{\mathop{C{{H}_{2}}}}\,\overset{\overset{\operatorname{O}}{\mathop{\parallel }}\,}{\mathop{C}}\,C{{H}_{3}}\]

The formula of an aldehyde with molecular formula \[{{\operatorname{C}}_{2}}{{H}_{4}}O\]is \[{{\operatorname{CH}}_{3}}CHO.\]

The compound X is