6-Chloro-1,2,4-triazolo[4,3-b]pyrido[2,3-d]-and [3,2-d]pyridazines - Synthesis and Structure Determination
作者:M. A. Hassan、A. F. M. Fahmy
DOI:10.1002/ardp.19883211223
日期:——
5,8‐Dichloropyrido[2,3‐d]pyridazine (2) gave with hydrazine hydrate in dioxane 5‐chloro‐8‐hydrazino‐ and 8‐chloro‐5‐hydrazinopyrido[2,3‐d]pyridazines 3 and 4. When 3 and 4 were allowed to react with formic acid they gave a mixture of the 6‐chloro‐1,2,4‐triazolo[4,3‐b]pyrido[2,3‐d] ‐ and [3,2‐d]pyridazines (5 and 6).
5,8-二氯吡啶并[2,3-d]哒嗪 (2) 在二恶烷中与水合肼生成 5-氯-8-肼和 8-氯-5-肼吡啶并[2,3-d]哒嗪 3 和 4。当 3 和 4 与甲酸反应时,它们得到 6-氯-1,2,4-三唑并[4,3-b]吡啶并[2,3-d]-和[3,2- d]哒嗪(5和6)。