作者:E. V. Shchegol’kov、E. V. Sadchikova、Ya. V. Burgart、V. I. Saloutin
DOI:10.1007/s11172-008-0096-6
日期:2008.3
Alkyl 3-fluoroalkyl-3-oxopropionates react with antipyrinyldiazonium chloride to form 2-antipyrinylhydrazono-3-fluoroalkyl-3-oxopropionates. The use in these reactions of hetaryldiazonium salts, containing NH group in the α position, leads to alkyl 7-fluoroalkyl-7-hydroxy-4,7- dihydroazolo[5,1-c]triazine-6-carboxylates. 3-Amino-1H-1,2,4-triazole, 3-amino-4-ethoxycar- bonyl-1H-pyrazole, and 5-amino-4-ethoxycarbonyl-1H-imidazole were used as the heterocyclic component.
3- 氟烷基-3-氧代丙酸烷基酯与抗吡啶基氯化偶氮鎓发生反应,生成 2-抗吡啶基肼基-3-氟烷基-3-氧代丙酸烷基酯。在这些反应中使用在 α 位含有 NH 基团的 hetaryldiazonium 盐,可生成 7-氟烷基-7-羟基-4,7-二氢唑并[5,1-c]三嗪-6-羧酸烷基酯。3- 氨基-1H-1,2,4-三唑、3-氨基-4-乙氧羰基-1H-吡唑和 5-氨基-4-乙氧羰基-1H-咪唑被用作杂环成分。