作者:G. Doleschall、K. Lempert
DOI:10.1016/0040-4020(73)85008-2
日期:1973.1
3-Alkylthio-6-(2-aminophenyl)-1,2,4-triazin-5(2H)-ones (1) react with oxo compounds, the corresponding Schiff bases, as well as with methyl propionate to yield tricyclic products of type 8. The potential tautomeric equilibrium between compounds 8 and the corresponding Schiff bases 6 could not be demonstrated by spectroscopic means. The 1:1 adduct obtained with acetylacetone exists in solution as a
3-烷硫基-6-(2-氨基苯基)-1,2,4-三嗪-5(2H)-1(1)与含氧化合物,相应的席夫碱以及丙酸甲酯反应生成三环产物类型8。化合物之间的潜在互变异构平衡8和相应的席夫碱6可以不通过光谱方法来证明。用乙酰丙酮获得的1:1加合物以8r和互变异构烯胺5的混合物形式存在于溶液中,而在结晶状态下仅存在纯烯胺5。1A与原酸酯反应生成更高的不饱和类似物21之8。讨论了制备化合物8和21的几种其他方法,其光谱以及它们的反应。