作者:Jean-Philippe Mayer、Jean-Pierre Fleury
DOI:10.1016/0040-4039(80)80171-7
日期:1980.1
An unequivocal two step synthesis of 2-amino-3-cyano-5-formylpyrazine diethylacetal, starting from dimethylaminoacrolein and O-tosylisonitrosomalononitrile, is described. This pyrazine is a key intermediate for the preparation of folic acid and various analogues.
描述了以二甲基氨基丙烯醛和O-甲苯磺酰基异亚硝基马来腈为原料的2-氨基-3-氰基-5-甲酰基吡嗪二乙基缩醛的明确的两步合成。该吡嗪是制备叶酸和各种类似物的关键中间体。