Microwave-assisted synthesis of 2-aminothiophene-3-carboxylic acid derivatives, 3H-thieno [2, 3-d] pyrimidin-4-one and 4-chlorothieno [2, 3-d] pyrimidine
S Hesse, E Perspicace, G Kirsch
Index: Tetrahedron Letters, , vol. 48, # 30 p. 5261 - 5264
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Citation Number: 74
Abstract
... Tetrahedron Letters. Volume 48, Issue 30, 23 July 2007, Pages 5261–5264. Cover image Cover image. ... Indeed, most published Gewald thiophene synthetic procedures required long reaction times that vary between 4 and 48 h for the condensation step. ...
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