Consider the following sequence of reaction and find out product C. HCN C_2H_5MgX/H_3O^+ A dil. ,NaOH B dil. ,acid C

MHT CET Chemistry question

Consider the following sequence of reaction and find out product C.

(A)\mathrm{CH_{3}CH_{2}CH=C(CH_{3})CHO}Correct
(B)\mathrm{(CH_{3})_{2}C=C(OH)CH_{2}CHO}
(C)\mathrm{CH_{3}CH_{2}C(OH)=CHCH_{2}CHO}
(D)\mathrm{CH_{3}CH_{2}C(OH)CH=CHCHO}

Answer: (A)

Solution

A Grignard reagent with HCN followed by hydrolysis gives the aldehyde A = propanal; dilute alkali gives the aldol B = \mathrm{CH_{3}CH_{2}CH(OH)CH(CH_{3})CHO}; dilute acid

See the full step-by-step solution

Create a free account to read the complete working, and practise questions like this in a timed test.

Create a free account

Question ID VK-080968