申请人:HULS Aktiengesellschaft
公开号:US04864026A1
公开(公告)日:1989-09-05
A method of manufacturing N-alkyl-N'-methyl-alkyleneureas, by reacting an alkyleneurea with formaldehyde to produce a hydroxymethyl-alkyleneurea, and further reacting said hydroxymethyl-alkyleneurea with formic acid to yield a N-alkyl-N'-methyl-alkyleneurea product, wherein the molar ratio of the N-alkyl-N'-hydroxymethyl-alkyleneureas or N,N'-(bis)hydroxymethyl-alkyleneureas is from 1-2 to 1-10, preferably 1-4 to 1-7.
一种制造N-烷基-N'-甲基-烷基脲的方法,通过将烷基脲与甲醛反应生成羟甲基-烷基脲,然后将该羟甲基-烷基脲与甲酸进一步反应,得到N-烷基-N'-甲基-烷基脲产物,其中N-烷基-N'-羟甲基-烷基脲或N,N'-(双)羟甲基-烷基脲的摩尔比为1-2至1-10,优选为1-4至1-7。