[Zainb]

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

[Jd1828]

cHex2B-Cl is pretty selective for E isomers

[Zainb]

cHex2B-Cl is pretty selective for E isomers

thanks can give me any reference if possible

[Zainb]

thanks again

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