An efficient synthesis of stable phosphorus ylieds based on three component reaction of carbamazepine

Stabilized phosphorus yeildes were synthesized from the three component reaction between dialkylacetylendicarboxilate and triphenylphosphite in the presence of carbamazepine.These stable ylieds exist in solution as a mixture of two diasteromers. A part of stable ylieds underwent Staudinger reaction to produce iminophosphorane together with dialkyl fumarates and/or dialkyl maleate.

Keywords:

three-component reaction , triphenylphosphite , stable phosphorus ylides , Acetylenic ester , iminophosphorane