申请人:BASF Aktiengesellschaft
公开号:US04716243A1
公开(公告)日:1987-12-29
.alpha.-(o-Chlorophenyl)-aminomethylene-.beta.-formylaminopropionitrile, process for its preparation by reacting a metal salt of .alpha.-formyl-.beta.-formylaminopropionitrile with a salt of o-chloroaniline in an aqueous medium, and use of the product to prepare the compound of the formula ##STR1## by reaction with acetamidine. The pyrimidine thus obtained is an intermediate for the preparation of vitamin B.sub.1.
.alpha.-(邻氯苯基)-氨亚甲基-.beta.-甲酰基氨基丙腈的制备方法是将.alpha.-甲酰基-.beta.-甲酰基氨基丙腈的金属盐与邻氯苯胺的盐在水介质中反应,所得产物通过与乙酰胺基的反应制备出式子##STR1##的化合物。所得的嘧啶是维生素B.sub.1的制备中间体。