An Easy One-Pot Procedure for the Synthesis of <Emphasis Type="Italic">N</Emphasis>-Sulfonyl Phosphorous Ylides and Sulfonyl Iminophosphoranes |
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Authors: | Ahmad Shaabani Abbas Rahmati Soheila Naderi |
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Institution: | (1) Department of Chemistry, Shahid Beheshti University, Tehran, Iran |
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Abstract: | Summary. Reaction of triphenylphosphine and an electron deficient acetylenic ester in the presence of strong N–H acid such as alkyl
and aryl sulfamides or acetamide produces phosphorous ylides at room temperature in CH2Cl2. The aryl sulfamide phosphoranes undergo a smooth transformation reaction in boiling toluene and produce iminophosphoranes. |
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Keywords: | , Iminophosphorane, N-Sulfonyl phosphorous ylides, Aza-Wittig reaction, |
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