Chemical Forums

Chemistry Forums for Students => Organic Chemistry Forum => Topic started by: chinmoy on January 18, 2018, 04:22:13 AM

Title: Please help me to find out the most stable carbocation.
Post by: chinmoy on January 18, 2018, 04:22:13 AM

I am confused to find the most stable carbocation.I think the answer is 1. but this is wrong.please help me.

Title: Re: Please help me to find out the most stable carbocation.
Post by: Babcock_Hall on January 18, 2018, 08:56:12 AM

It is a forum rule (see red link above) that you must show your attempt before we can help you.  What factors stabilize carbocations?

Title: Re: Please help me to find out the most stable carbocation.
Post by: chinmoy on January 18, 2018, 11:38:09 AM

Quote from: Babcock_Hall on January 18, 2018, 08:56:12 AM

It is a forum rule (see red link above) that you must show your attempt before we can help you.  What factors stabilize carbocations?

         Sorry sir, I am new on this forum so I don't know the rule.Ok, I am telling you How I approach this Problem. Here in this question ask to find stable carbocation.And as per my knowledge, I know that Carbocation can be stabled by +I effect and Resonance.In the number 1 option, There is a possibility of resonance, so I think that this resonance can stabilize the carbonation.But the answer is wrong.The correct option is 2.Now please explain sir. @Babcock_Hall

Title: Re: Please help me to find out the most stable carbocation.
Post by: Babcock_Hall on January 18, 2018, 12:39:03 PM

Are there lone pairs of electron on oxygen?

Title: Re: Please help me to find out the most stable carbocation.
Post by: chinmoy on January 18, 2018, 01:06:28 PM

yes.they have.

Title: Re: Please help me to find out the most stable carbocation.
Post by: Babcock_Hall on January 18, 2018, 03:35:28 PM

Can you use them to write an alternate resonance structure for one of the carbocations?