July 07, 2020, 01:52:14 PM
Forum Rules: Read This Before Posting


Topic: enol esterification  (Read 2648 times)

0 Members and 1 Guest are viewing this topic.

Offline Zainb

  • Regular Member
  • ***
  • Posts: 29
  • Mole Snacks: +0/-0
enol esterification
« on: November 20, 2009, 09:44:47 AM »
I try to do enol esterification of allylic ketone



but I did not find a suitable procedure, i try to use basic conditions like pyridine and also with activation of the acid by using shinna reagent...etc. I have mixtures from (Z) and E-ENOL ESTER with a very weak yeild.

a friend suggested using Lewis acid acid as a catalyst like BoEt3..but  i did not find any procedure in literature about that..if someone will give me a good idea, i need (E)-ENOL ESTER NOT (Z).

thanks

Offline Jd1828

  • Chemist
  • Regular Member
  • *
  • Posts: 63
  • Mole Snacks: +2/-0
  • Gender: Male
Re: enol esterification
« Reply #1 on: November 20, 2009, 10:09:59 AM »
cHex2B-Cl is pretty selective for E isomers

Offline Zainb

  • Regular Member
  • ***
  • Posts: 29
  • Mole Snacks: +0/-0
Re: enol esterification
« Reply #2 on: November 20, 2009, 10:56:33 AM »
cHex2B-Cl is pretty selective for E isomers

thanks can give me any reference if possible

Offline Zainb

  • Regular Member
  • ***
  • Posts: 29
  • Mole Snacks: +0/-0
Re: enol esterification
« Reply #3 on: November 20, 2009, 11:22:16 AM »
thanks again

cHex2B-Cl is a selective reagent for trans-enolate in aldol rections..hopefully it works with me.

Sponsored Links