An Easy One-Pot Procedure for the Synthesis of N-Sulfonyl Phosphorous Ylides and Sulfonyl Iminophosphoranes
- Resource Type
- Original Paper
- Authors
- Shaabani, Ahmad; Rahmati, Abbas; Naderi, Soheila
- Source
- Monatshefte für Chemie - Chemical Monthly: An International Journal of Chemistry. June 2007 138(6):553-557
- Subject
- Keywords. Iminophosphorane; N-Sulfonyl phosphorous ylides; Aza-Wittig reaction.
- Language
- English
- ISSN
- 0026-9247
1434-4475
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.