Application of phosphonyl carbanions to highly regioselective synthesis of some diazaphospholes and pyrazolinyl phosphonates
作者:Wafaa M. Abdou、Maha D. Khidre、Rizk E. Khidre
DOI:10.1016/j.ejmech.2008.03.032
日期:2009.2
substituted spiro[3′]pyrazolinylphosphonates and spiro[3]diazaphospholes were synthesized via 1:3-dipolar cycloaddition reaction of 2-diazonio-1,3-dioxo-2,3-dihydro-1H-inden-2-ide with phosphonyl carbanions: diethyl-cyanomethylphosphonate, -phosphono-acetates, and -vinylphosphonate. On the other hand, treatment of the diazo substrate with diethyl (thiomethyl)methylphosphonate led to the formation of