专利号:US-7091382-B2 优先权日:2003-05-13 标题 :Synthesis of N-methyl-N-phenylaminoacrolein 发明人:BANFI ALDO; MANCINI ALFREDO 权利人:CLARIANT LSM ITALIA SPA 摘要:A process is disclosed for manufacturing N-methyl-N-phenylaminoacrolein of formula (I) n nwhich comprises reacting N-methylformanilide and an alkyl vinyl ether of formula (III)n n nwherein R is a C 3 –C 4 alkyl, said process being characterized in that the reaction between N-methylformanilide and said alkyl vinyl ether of formula (III) is carried out in the presence of phosgene, diphosgene or triphosgene in a solvent selected from dioxane, acetonitrile and/or chlorobenzene.
专利号:US-2004229958-A1 优先权日:2003-05-13 标 题 :Synthesis of N-methyl-N-phenylaminoacrolein