1,1’-(3-Methyl-4-phenylthieno[2,3-b]thiophene-2,5-diyl)diethanone as a Building Block in Heterocyclic Synthesis. Novel Synthesis of Some Pyrazole and Pyrimidine Derivatives

A series of new bis(heterocycles) featuring thieno[2,3-b]thiophene rings was synthesized in a combinatorial manner. Intramolecular cyclization of enaminone derivatives with appropriate N-nucleophiles afforded the target compounds. All compounds were characterized by 1H-, 13C-NMR, GCMS, IR, and UV-Vi...

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Main Authors: Saeed Alshahrani, Assem Barakat, Yamin Siddiqui, Yahia Nasser Mabkhot, Abdullah Mohammed Al-Majid
Formato: Artigo
Idioma:Inglês
Publicado em: MDPI AG 2011-08-01
Colecção:Molecules
Assuntos:
thienothiophene
enaminones
bis-heterocycles
intramolecular cyclization
DMF-DMA
Acesso em linha:http://www.mdpi.com/1420-3049/16/8/6502/
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