Question

The best reagent to convert pent-3-en-2-ol into pent-3-en-2-one is
A. pyridinium chlorochromate
B. chromic anhydride in glacial acetic aicd
C. acidic dichromate
D. acidic permanganate

Answer 1

Correct Answer - B
`CH_(3)-underset(OH) underset(|)overset(2^(@)) (CH)-CH=CH-CH_(3) to CH_(3) - underset(O) underset(||)C-CH=CHCH_(3)`
Suitable regant is only chromic anhydride glacial acetic acid. Other will also effect `(C=C)` bond.