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Offlineskychem
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Registered: 10/01/04
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Last seen: 12 years, 3 days
carboyxlic acids to cyclic esters
    #3365467 - 11/15/04 07:53 PM (12 years, 21 days ago)

anyone know how to take a carboyxlic acid and make it a cyclic ester? I am aware of the method used for making a hydroxy carboxylic acid to a cyclic ester, only I don't know how to make a carboyxlic acid into a hydroxy carboyxlic acid.

would love your help!


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OfflineCatalysis
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Registered: 04/23/02
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Re: carboyxlic acids to cyclic esters [Re: skychem]
    #3365552 - 11/15/04 08:05 PM (12 years, 21 days ago)

Carboxylic acids with an alpha-H can react with dihalogens in the presence of a lewis acid to make a halocarboxylic acid, which can then of course be converted to a hydroxy-CA. Its an HVZ reaction but you knew that, right?


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Anonymous

Re: carboyxlic acids to cyclic esters [Re: skychem]
    #3365892 - 11/15/04 09:10 PM (12 years, 21 days ago)

aggghhh organic chemmm!!!


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Invisiblelooner2
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Registered: 06/20/04
Posts: 3,849
Re: carboyxlic acids to cyclic esters [Re: ]
    #3515608 - 12/18/04 01:13 AM (11 years, 11 months ago)

Wouldn't intramolecular esterification occur in presence of acid?

Catalysis what is a HVZ reaction?


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I am in love with Acidic_Sloth



Edited by looner2 (12/18/04 01:59 AM)


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OfflineSeussA
Error: divide byzero

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Registered: 04/27/01
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Re: carboyxlic acids to cyclic esters [Re: looner2]
    #3517026 - 12/18/04 01:55 PM (11 years, 11 months ago)

> what is a HVZ reaction

Hell-Vollhardt-Zelinsky Reaction used for alpha-bromination of carboxylic acids (if I remember my organic chemistry correctly, it has been many years).


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General Interest >> Science and Technology

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