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SYNTHSIS OF 5-CYANO-2-(4-n-PENTYL-4-BIPHENYLYL)-PYRIMIDINE
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作者 Yong De LI Fang Fang FANG +2 位作者 Lu Ning HAN Qian WANG Dong Hui SHI Chemistry Dept,of Tsinghua University,Beijing 100084 《Chinese Chemical Letters》 SCIE CAS CSCD 1992年第9期699-702,共4页
Condensation of substituted diethyl-malonates with phenylamidine hydrochloride give liquid crystals with a pyrimidine ring,which then subjeet graup transformation to give the title compound—5-cyano-2-(4-n-peatyl-4-bi... Condensation of substituted diethyl-malonates with phenylamidine hydrochloride give liquid crystals with a pyrimidine ring,which then subjeet graup transformation to give the title compound—5-cyano-2-(4-n-peatyl-4-biphenylyl) pyrimidine in high yield. 展开更多
关键词 pyrimidine n-PENTYL-4-BIPHENYLYL SYNTHSIS OF 5-cyano-2
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Synthesis of novel benzo[b]pyrimido[4',5':5,4]thieno[2,3-e][1,6]naphthyridine-8-ones via Pictet–Spengler cyclization 被引量:1
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作者 Dao-Lin Wang Xiao-Ce Shi +1 位作者 Yong-Yang Wang Jian Ma 《Chinese Chemical Letters》 SCIE CAS CSCD 2016年第2期261-264,共4页
An efficient method for the synthesis of novel benzo[b]pyrimido[4′,5′:5,4]thieno[2,3e]-[1,6]naphthyridine-8-one derivatives via Pictet-Spengler cyclization is reported. The reaction of 4-(3-aminopyrimido[4,5-d]thi... An efficient method for the synthesis of novel benzo[b]pyrimido[4′,5′:5,4]thieno[2,3e]-[1,6]naphthyridine-8-one derivatives via Pictet-Spengler cyclization is reported. The reaction of 4-(3-aminopyrimido[4,5-d]thieno-2-yl)quinoline-2-ones, which could be obtained from Thorpe-Ziegler isomerization of 4-bromomethylquinoline-2-ones and 5-cyano-1,6-dihydro-4-methyl-2-phenyl-6-thioxopyrimidine,with aromatic aldehydes in the presence of BF3·OEt2 gives pyrimidothieno[1,6]naphthyridines in good yields. 展开更多
关键词 4-Bromomethylquinoline-2-one 5-cyano-6-thioxopyrimidine Pyrimido[4 5′:5 4]thieno[2-3e][1 6]naphthyridine Thorpe-Ziegler reaction Pictet-Spengler reaction
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