Carbonyl CompoundMedium
Question
' x ' is the product which is obtained by the hydrolysis of prop-1-yne in the presence of mercuric sulphate under dilute acidic medium at 333 K . ' y ' is the product which is obtained by the reaction of ethane nitrile with methyl magnesium bromide in dry ether followed by hydrolysis. IUPAC name of product obtained from ' x ' and ' y ' in the presence of barium hydroxide followed by heating is:
Options
A.2-Methylpent-4-en-3-one
B.4-Methylpent-3-en-2-one
C.4-Methylpent-1-ene
D.2-Methylpent-3-one
Solution
Sol. [Key Concept: Prop-1-yne hydrates (Kucherov) to acetone (x) and ethanenitrile with ${CH}_{3}MgBr$ then hydrolysis also gives acetone (y); aldol condensation of the two with $Ba(OH)_{2},\Delta$ gives $4$-methylpent-$3$-en-$2$-one.]
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