Synthesen und chemische Reaktionen von 1-Cyano-1-isocyanoalkylphosphonsäureestern
作者:Joachim R. Simon、Richard Neidlein
DOI:10.1055/s-2000-6315
日期:——
1-Cyano-1-isocyanoalkylphosphonic acid esters 4 were synthesized starting from cyanoalkyl-phosphonic acid esters 1 by amination and formylation followed by dehydration with trichloromethylchloroformate (diphosgene) and triethylamine at low temperatures. Bromination of 4 gave 1,1-(dibromomethylideneamino)-1-cyanophosphonic acid esters 5.