OBTAINING OF SUBSTITUTED IMIDES AND FURANS FROM BENZOIC ACID, 1,1,3,3-TETRAMETHYLBUTYL ISOCYANIDE AND ACETYLENIC ESTERS THROUGH VINYLPHOSPHONIUM SALT
Protonation of the reactive intermediates produced in the reaction between triphenylphosphine and dialkyl acetylenedicarboxylates by benzoic acid leads to vinyltriphenylphosphonium salts, which undergo complex reactions with 1,1,3,3-tetramethylbutyl isocyanide to produce corresponding substituted furans and imides in fairly good yields and stereoselective manner
Keywords : acetylenic ester, densely functionalized furan, electron-poor imide, phosphorus ylide, triphenylphosphine
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