Author:
Ahmed Essam K.,Fröhlich Johannes,Sauter Fritz
Abstract
Derivatives of the novel heterocyclic parent systems imidazolo[1,2-a]thiopyrano[4',3':4,5]thieno[2,3-d]pyrimidine (B) and thiopyrano[4',3':4,5]thieno[3,2-e][1,2,4]triazolo[1,5-c]pyrimidine (C) have been synthesized by fusing pyrimidine moieties to 2-amino-4,7-dihydro-5H-thieno[2,3-c]thiopyran-3-carboxylic acid ethyl ester (1) and -3-carbonitrile (10), followed by cyclization reactions of the title intermediates A thus obtained.
Publisher
Institute of Organic Chemistry & Biochemistry
Cited by
10 articles.
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1. ChemInform Abstract: Fusion Reactions of N-Heterocyclic Moieties to Thiopyrano(4′,3′:4,5) thieno(2,3-d)pyrimidines.;ChemInform;2010-08-05
2. Efficient Synthesis and Fungicidal Activities of 3,5,6,8-Tetrahydro-4H-thiopyrano[4′,3′ :4,5]thieno[2,3-d]pyrimidin-4-ones;Phosphorus, Sulfur, and Silicon and the Related Elements;2009-02-03
3. Syntheses of Thiophenes with Group V Substituents;Thiophenes;2004
4. Synthesis of 3-Substituted Pyrido[4′,3′:4,5]thieno[2,3-d]pyrimidines and Related Fused Thiazolo Derivatives;Phosphorus, Sulfur, and Silicon and the Related Elements;2003-04
5. Synthesis of 3-substituted pyrido[4?,3?:4,5]thieno[2,3-d]pyrimidines and related fused thiazolo derivatives;Heteroatom Chemistry;2003