作者:Mikio Hori、Kiyomi Tanaka、Tadashi Kataoka、Hiroshi Shimizu、Eiji Imai、Kazuhiko Kimura、Yoshinobu Hashimoto
DOI:10.1016/s0040-4039(00)94882-2
日期:1985.1
5,7-Dimethyl[1,2,4]triazolo[1,5-a]pyrimidinio-3-phenacylide () generated by the reaction of an iminium salt () with 1 eq. of triethylamine, underwent a new thermal ring cleavage of the triazole moiety to give the pyrimidine derivative. However reaction of with 2 eq. of triethylamine afforded the 2-iminooxazoline derivative. The iminooxazoline reacted with nucleophiles such as alcohols or amines to
5,7-二甲基[1,2,4]三唑并[1,5-a]嘧啶基-3-苯乙酰胺()通过亚胺盐()与1eq。的反应生成。在三乙胺中,对三唑部分进行新的热环裂解,得到嘧啶衍生物。然而,与2当量的反应。用三乙胺得到2-亚氨基恶唑啉衍生物。亚氨基恶唑啉与亲核试剂如醇或胺反应生成咪唑。