M. Abdaoui et al., EXPEDIENT SYNTHESIS OF 2-CHLOROETHYLNITROSOSULFAMIDES (CENS) VIA THE DECARBOXYLATIVE REOPENING OF SULFAMOYLOXAZOLIDINONES, Tetrahedron letters, 37(32), 1996, pp. 5695-5698
The synthesis of chloroethylnitrososulfamides (CENS), was carried out
starting from chlorosulfonyl isocyanate, amines and haloalcohols throu
gh heterocyclization and decarboxylative reopening of N-sulfamoyl-2-ox
azolidinones. A total regioselectivity concerning CO2 versus SO2 site
hydrolysis was observed. A related aminolysis of sulfamoyloxazolidinon
es gave N-carbamoylsulfamides. The specific nitrosation on the N-chlor
oalkyl moiety can be obtained after methylation of the sulfamoyloxazol
idinones. Copyright (C) 1996 Elsevier Science Ltd