Home » Ask & Discuss » Chemistry. » Organic Chemistry « Back to Discussion



Organic Chemistry

New kid on the Block

Joined: 28 Sep 2008
Post: 8
14 Jul 2009 15:54:01 IST
0 People liked this
11
948 View Post
which carbocation is more stable? a)cyclopropyl methyl,b)cyclobutyl methyl,c)cyclobutyl,d)cycloprop
None

which carbocation is more stable?a)cyclopropyl methyl,b)cyclobutyl methyl,c)cyclobutyl,d)cyclopropyl.


Share this article on:

Comments (11)


New kid on the Block

Joined: 6 Feb 2009
Posts: 27
14 Jul 2009 15:57:09 IST
1 people liked this

cyclo propyl methyl

New kid on the Block

Joined: 19 Jun 2009
Posts: 23
14 Jul 2009 18:09:29 IST
0 people liked this

answer is 'a' .a is more stable than any benzylic carbocation....in 'a' 3 canonical forms r possible......it is a special case inspite of it being a 3 membered ring compound


Cool goIITian

Joined: 14 Jul 2009
Posts: 30
15 Jul 2009 12:23:44 IST
0 people liked this

of course a option is most stable because of hyperconjugation(BAKER NATHAN EFFECT)


Blazing goIITian

Joined: 11 Sep 2008
Posts: 1159
15 Jul 2009 16:33:29 IST
0 people liked this

to all idiots who think so stupidly -------go through organic carefully before answering like this!!!!!!!!!!! it is tricyclopropylmethyl carbocation that is stabler than benzylic carbocation..not the cyclopropyl carbocation!!!!!!! ans should be (a) because the cyclopropyl ring is highly strained and wants to expand----------the carbocation provides it a source to expand!!!!!!!!!.....................the site is full of such idiotic entities now!!!!!!!!!!!!

ADARSH SINHA's Avatar

Cool goIITian

Joined: 17 Jul 2009
Posts: 32
19 Jul 2009 01:06:58 IST
0 people liked this

dis will b cyclopropyl methyl becz after 4mation of carbocation it shows dancing resonance\(or sigma resonance)..........
ADARSH SINHA's Avatar

Cool goIITian

Joined: 17 Jul 2009
Posts: 32
19 Jul 2009 01:08:50 IST
0 people liked this

dis will b cyclopropyl methyl becz after 4mation of carbocation it shows dancing resonance\(or sigma resonance)..........
adi's Avatar

Blazing goIITian

Joined: 29 Apr 2009
Posts: 1581
19 Jul 2009 01:26:07 IST
0 people liked this

 the carbo cation stability is decided da the no.of hyperconjugating structures an

in case of the 3membered ring cyclic compound if you write the hyp structures u will notice relaxation in strained bonding

so answer is cyclopropyl methyl


Blazing goIITian

Joined: 24 Mar 2009
Posts: 467
22 Jul 2009 13:31:33 IST
0 people liked this

what i have learnt till now is dat hyperconjugation is shown by only dose comps which have at least I DOUBLE BOND ..........and by the way wats BAKER NATTHAN EFFECT..........

ADARSH SINHA's Avatar

Cool goIITian

Joined: 17 Jul 2009
Posts: 32
23 Jul 2009 22:57:11 IST
0 people liked this

yyar double bond is nt compulsory.....only da system must be conjugated for hyperconjugation.........
ADARSH SINHA's Avatar

Cool goIITian

Joined: 17 Jul 2009
Posts: 32
29 Jul 2009 01:12:10 IST
0 people liked this

BAKER NATHAN EFFECT AND HYPERCONJUGATION ARE SAME.........

New kid on the Block

Joined: 5 Aug 2010
Posts: 1
5 Aug 2010 19:29:32 IST
0 people liked this

which carbocation is more stable?a)cyclopropyl methyl,b)cyclobutyl methyl,c)cyclobutyl,d)cycloprop



Quick Reply


Reply

Some HTML allowed.
Keep your comments above the belt or risk having them deleted.
Signup for a avatar to have your pictures show up by your comment
If Members see a thread that violates the Posting Rules, bring it to the attention of the Moderator Team
Free Sign Up!

Preparing for IIT-JEE ?

Arihant Revision Package for IIT JEE - Books, Practice Tests + Rank Predictor


@ INR 1,995/-

For Quick Info

Name

Mobile No.

Find Posts by Topics

Physics.

Topics

Mathematics.

Chemistry.

Biology

Parents

Board

Fun Zone

Sponsored Ads