Some Reactions with Indane‐1,3‐dione: A Facile Synthesis of Pentacycline Heterocyclic Analogues
作者:Fathy M. Abdelrazek、Peter Metz、Anne Jaeger
DOI:10.1002/jhet.3572
日期:2019.7
Indane‐1,3‐dione 1 reacts with salicylaldehyde 5 and malononitrile 3 to afford 6‐amino‐7‐imino‐7H‐indeno‐[2′,1′:5,6]‐pyrano‐[3,4‐c]‐chromene 6, which could be transformed into the corresponding 7‐oxo derivative 7. 2‐(3‐Oxoindan‐1‐ylidene)‐malononitrile 10 couples with the diazonium salts 8, 14, and 15 to afford after cyclization the indeno‐[2,1‐c]‐pyridazine 13 and the indeno‐[2′,1′:3,4]‐pyridazino‐[1
茚满1,3-二酮1与水杨醛5和丙二腈3反应生成6-氨基-7-亚氨基-7 H-茚满[2',1':5,6]-吡喃并[3,4 - c ] -chromene 6,可以将其转化为相应的7-oxo衍生物7。2-(3-氧代茚满-1-亚基) -丙二腈10个耦合与重氮盐8,14,和15环化的茚并后,得到[2,1- c ^ ] -哒嗪13和茚并[2', 1':3,4]-哒嗪-[1,6- a ]-喹唑啉衍生物20和分别为21。