7-Phosphanorbornene derivatives as precursors of esters and amides of two-co-ordinate thiophosphenous O-acid
Abstract
Heating thiophosphinate O-esters and thiophosphinamides having the 7-phosphanorbornene framework results in elimination of fragments that are derivatives of thiophosphenous O-acid; they are trapped by cycloaddition with 2,3-dimethylbutadiene to form 2,5-dihydrophospholes.