作者:Norton P. Peet
DOI:10.1002/jhet.5570230141
日期:1986.1
Several oxamates were prepared from ethyl oxalyl chloride and 5-amino-4-cyanopyrazoles substituted in the 1-position with aryl, aroyl and arylsulfonyl groups. Both aroyl and arylsulfonyl groups suffered chloride-induced cleavage during this process. The synthesis of 7-(6-chloro-3-pyridazinyl)-7H-pyrazolo[3,4-d]-1,2,3-tri-azin-4(3H)-one (11) and its reaction with methanol to give 1-(6-chloro-3-pyri
由乙二酰氯乙基氯和在1-位被芳基,芳酰基和芳基磺酰基取代的5-氨基-4-氰基吡唑制备几种草酸酯。在此过程中,芳酰基和芳基磺酰基均遭受氯化物诱导的裂解。7-(6-氯-3-哒嗪基)-7 H-吡唑并[3,4- d ] -1,2,3-三嗪-4(3 H)-one(11)的合成还报道了用甲醇生成1-(6-氯-3-吡啶并嗪基)-5-甲氧基-1 H-吡唑-4-羧酰胺(12)。提出了这种有趣的转换的机制。