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检索条件"主题词=Orthoesters"
4 条 记 录,以下是1-10 订阅
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KAI(SO4)2-12H2O (Alum) Catalyzed One-Pot Three-Component Synthesis of 2-Alkyl and 2-Aryl-4(3H)-quinazolinone under Microwave Irradiation and Solvent Free Conditions
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Chinese Journal of Chemistry 2011年 第9期29卷 1982-1984页
作者: Mohammadi, Ali A. Sadat Hossini, S. S.t Department of Chemistry Sabzevar Branch Islamic Azad University Sabzevar Iran University of Applied Science and Technology Tehran P.. O. Box 14155-1644 Tehran Iran
Twenty 2,3-disubstituted-4(3H)-quinazolinones were synthesed by one-pot three-component method with isa- toic anhydride, orthoesters and amines as raw materials in the presence of KAI(SO4)2·12H2O (Alum) under m... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
A rapid synthesis of isoxazolo[5,4-d]pyrimidin-4(5H)-ones under microwave irradiation with solid acid catalysis in solvent-free conditions
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Chinese Chemical Letters 2008年 第5期19卷 525-528页
作者: A.Davoodnia M.Roshani S.H.Malaeke M.Bakavoli Department of Chemistry School of Sciences Islamic Azad UniversityMashhad BranchMashhad 91735-413Iran
A rapid and efficient method for the synthesis of isoxazolo[5,4-d]pyrimidin-4(5H)-ones has been developed through cyclocondensation of 5-aminoisoxazole-4-carboxamides with orthoesters under conventional heating and ... 详细信息
来源: 维普期刊数据库 维普期刊数据库 同方期刊数据库 同方期刊数据库 评论
A Rapid Access to Novel and Known Benzimidazole Derivatives Using Silica Chloride as a Reusable Catalyst
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Chinese Journal of Chemistry 2012年 第4期30卷 959-964页
作者: Karami, Bahador Ghashghaee, Vahideh Khodabakhshi, Saeed Department of Chemistry Yasouj University Yasouj Zip Code: 75918-74831 P. O.Box 353 Iran Department of Chemistry Gachsaran Branch Islamic Azad University Gachsaran Iran
A new application of silica chloride as an easily available and reusable solid acid catalyst for the synthesis of benzimidazole and its derivatives through the condensation of o-phenylenediamines and orthoesters under... 详细信息
来源: 维普期刊数据库 维普期刊数据库 评论
A new route to the synthesis of thieno[2,3-d]pyrimidin-4(3H)-one derivatives catalyzed by 12-tungstophosphoric acid (H_3PW_(12)O_(40))
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Chinese Chemical Letters 2007年 第12期18卷 1483-1486页
作者: A.Davoodnia M.Bakavoli Gh.Barakouhi N.Tavakoli-Hoseini Department of Chemistry School of SciencesIslamic Azad UniversityMashhad 91735-413Iran
Heteropoly acid H3PW12040 (PW) has been used as an effective catalyst for the synthesis of thieno[2,3-d]pyrimidin-4(3H)-one derivatives. The present methodology offers several advantages, such as high yields, shor... 详细信息
来源: 维普期刊数据库 维普期刊数据库 同方期刊数据库 同方期刊数据库 评论