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Chemistry Forums for Students => Organic Chemistry Forum => Topic started by: kapital on June 22, 2013, 09:21:40 AM

Title: estheres and ketones
Post by: kapital on June 22, 2013, 09:21:40 AM
Why is carbonil grup so diffrent if it is in esters?
Title: Re: estheres and ketones
Post by: curiouscat on June 22, 2013, 09:46:27 AM
Different how?
Title: Re: estheres and ketones
Post by: kapital on June 22, 2013, 10:30:42 AM
Diffrent chemical reactions and chemical propertis?
Title: Re: estheres and ketones
Post by: camptzak on June 22, 2013, 04:01:28 PM
Quote from: kapital on June 22, 2013, 10:30:42 AM
Diffrent chemical reactions and chemical propertis?

because it has two oxygen atoms
Title: Re: estheres and ketones
Post by: kapital on June 22, 2013, 05:39:20 PM
And how does this contribute to such diffrences?
Title: Re: estheres and ketones
Post by: Dan on June 23, 2013, 05:34:49 AM
There is a carbonyl chapter in every organic chemistry textbook that will cover this in detail
Title: Re: estheres and ketones
Post by: kapital on June 23, 2013, 08:00:14 AM
I do not think it specificall answer on my question. It just says which reactions are possible with normal ketones and which with esters.

A lot of reactions are posible with ketones, but not whith ester, why?
Title: Re: estheres and ketones
Post by: curiouscat on June 23, 2013, 08:43:29 AM
Quote from: kapital on June 23, 2013, 08:00:14 AM
A lot of reactions are posible with ketones, but not whith ester, why?

What about aldehydes? And carboxylic acids? Or acyl halides?

Why are they different? They all have a C=O group.

Title: Re: estheres and ketones
Post by: kapital on June 23, 2013, 09:50:30 AM
Aldehyde react a lot similar like ketones.  On the other hand acid and acid derivatives usualy react similar to esters.
Title: Re: estheres and ketones
Post by: orgopete on June 24, 2013, 11:07:13 PM
Perhaps we should ask this question. Why are amide less reactive than esters and less reactive than anhydrides and less reactive than acyl chlorides? If you have succeeded in answering why amides are the least reactive than esters, then you may answer why esters are less reactive than ketones.