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Wittig-Horner synthesis of N-acyl-alpha-ylidene-gamma-aminobutyrates and of 3-ylidene-2-pyrrolidones

, : Wittig-Horner synthesis of N-acyl-alpha-ylidene-gamma-aminobutyrates and of 3-ylidene-2-pyrrolidones. Pharmazie 54(12): 885-888, Dec

Wittig-Horner reaction of benzaldehyde and of ketones with recently described diethyl gamma-amido-alpha-ethoxycarbonyl-phosphonates provides the title esters and/or the title pyrrolidones, namely both E- and Z-isomers from unsymmetrical carbonyl components. Ylidenpyrrolidones are directly and without by-products obtained from the recently described diethyl 1-ethoxycarbonyl-2-pyrrolidone-3-phosphonate.


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