856871-22-2Relevant articles and documents
Tri-component reaction of 2-alkyl-4,5-dichloropyridazin-3(2H)-ones: Synthesis of 5-cyano-5-(pyrimidin-2-yl)-2,7-dialkyl-5H-dipyridazino-[4,5-b:4,5- e]-4H-thiopyran-1,6-dione and 2-(4-cyanophenoxy) pyrimidine
Park, Jung-Won,Kim, Jeum-Jong,Kim, Ho-Kyun,Chung, Hyun-A,Cho, Su-Dong,Sang, Gyeong Lee,Shiro, Motoo,Yoon, Yong-Jin
, p. 5389 - 5395 (2005)
Reaction of 2-alkyl-4,5-dichloropyridazin-3(2H)-ones with p-cyanophenol and 2-mercaptopyrimidine in the presence of base gave 2,4,5-trisubstituted- pyridazin-3(2H)-ones 4-9, 2-(4-cyanophenoxy)pyrimidine (10) and 5-cyano-5-(pyrimidin-2-yl)-2,7-dialkyl-5H-dipyridazino[4,5-b:4,5-e] -4H-thiopyran-1,6-diones 11 as a novel heterocycle.