Generation of Acyl Anion Equivalents from Acylphosphonates via Phosphonate—Phosphate Rearrangement: A Highly Practical Method for Cross-Benzoin Reaction

Autor: Ömer Reis, Iğdir Ac, Ayhan S. Demir, Ilker Esiringu, Serkan Eymur
Rok vydání: 2006
Předmět:
Zdroj: ChemInform. 37
ISSN: 1522-2667
0931-7597
Popis: [reactions: see text] Acylphosphonates are potent acyl anion precursors that generate acyl anion equivalents under the promotion of cyanide anion via phosphonate-phosphate rearrangement. These anions readily react with aldehydes to provide cross-benzoin products. In this way it is possible to synthesize a variety of aromatic-aromatic, aromatic-aliphatic, and aliphatic-aromatic benzoins. Moreover the reaction of benzoylphosphonate with potent electrophile 2,2,2-trifluoroacetophenone provided the corresponding aldehyde-ketone coupling product in high yield.
Databáze: OpenAIRE