Stable 1,6-Diionic Phosphorus Betaines Derived from Electron-Deficient Acetylenic Compounds

Issa Yavari Department of Chemistry, University of Tarbiat Modarres, Tehran, Iran

Abdolali Alizadeh Department of Chemistry, University of Tarbiat Modarres, Tehran, Iran

Mohammad Anary-Abbasinejad Department of Chemistry, University of Tarbiat Modarres, Tehran, Iran

Abstract

The addition of triphenylphosphine to methyl propiolate, ethyl propiolate, or ethynyl methyl ketone in the presence of a strong NH-acid, such as 5-nitro-2,4-dihydro-3 H -1,2,4-triazol-3-one, leads to stable 1,6-diionic organophosphorus compounds in excellent yields.

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Stable 1,6-Diionic Phosphorus Betaines Derived from Electron-Deficient Acetylenic Compounds

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Stable 1,6-Diionic Phosphorus Betaines Derived from Electron-Deficient Acetylenic Compounds

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