aldehyde ketone

Give reason for the following
In Cannizaro reaction , presence of electron withdrawing group ('R') increases the rate of reaction

5 Answers

62
Lokesh Verma ·

I think it increases the stability of the intermediate formed on the attachement of OH-

1
big looser ......... ·

But r.d.s is the breaking of C - H bond

1
Siddharth ·


But R is an electron donating group.. It an alkyl or aryl group
And even in any case that R has a strong electron withdrawing group attached to it then -OH group will find it easy to attack that carbon(image)

1
voldy ·

it makes the strength of the C-O single bond more than that of the C-H bond .da
as O- can donate e-s better

19
Debotosh.. ·

that makes the carbonyl carbon more electron deficient and hence expecting better attack from hydroxide ion !!!!

Your Answer

Close [X]