IMPROVED PROCESS FOR PREPARING CARBAMOYL PYRIDINIUM COMPOUNDS
摘要
Novel process for preparing carbamoyl pyridinium compounds of formula: (I) which comprises reacting a pyridine sulfonic acid compound with a carbamoyl halide in a by-product solubilizing solvent (e.g. dichlarethane) and using a tertiary amine (e.g. tributylamine) as acid scavenger.
申请公布号
WO0146149(A1)
申请公布日期
2001.06.28
申请号
WO2000US34717
申请日期
2000.12.20
申请人
PPG INDUSTRIES OHIO, INC.
发明人
KREUTZBERGER, CHARLES, B.;MANNER, JAMES, A.;WALLACE, WENDY, E.
