ORGLIST:wittig or other methylenation

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From: Oleg Nadein (nadein$##$nmt.edu)
Date: Tue Jun 08 2004 - 17:51:04 EDT


I need to do Wittig reaction (methylenation) with aldehyde which contains
also enoate function (-CH=CH-CO2Me) on the other side of the chain.

OHC-CH(OBn)-CH(OBn)-CH(OBn)-CH=CH-CO2Me

Can you suggest more selective than conventional Wittig reagent for aldehyde
function or different conditions which would not cause reactions with
enoate.

(Tebbe and Takai reagents are being studied)

-------------------------------
Oleg N. Nadein
nadein$##$nmt.edu
Chemistry Department
New Mexico Tech
Socorro, NM 87801

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