作者:M. S. Shvartsberg、I. D. Ivanchikova、L. G. Fedenok
DOI:10.1007/bf01431813
日期:1996.7
Abstract2-Alkynyl-l-amino-9,10-anthraquinones react with HNO2 in a mixture of dilute HCl and dioxane at 20 °C to give I , 1-dichloroalkyl- IH-3-naphto[2,3-g]indazole-6,1 1 -diones. This reaction differs from the known cylization ofortho-alkynylbenzenediazonium salts involving the formation of a pyridazine ring (the Richter synthesis of 4-hydroxy- and 4-halocinnolines).
摘要 2-炔基-1-氨基-9,10-蒽醌在稀盐酸和二恶烷的混合物中在 20 °C 下与 HNO2 反应生成 I, 1-二氯烷基-IH-3-萘并[2,3-g]吲唑- 6,1 1-二酮。该反应不同于已知的邻-炔基苯重氮盐的环化,涉及形成哒嗪环(4-羟基-和4-卤代吲哚啉的Richter合成)。