An Efficient and Improved Method for the Synthesis of Bis(arylmethylidene)thiopyranones
作者:M. Saeed Abaee、Mohammad M. Mojtahedi、M. Mehdi Zahedi
DOI:10.1055/s-2005-872656
日期:——
aldehydes with tetrahydrothiopyran-4-one in the presence of N-(trimethylsilyl)diethylamine and 5 M lithium perchlorate in diethyl ether at room temperature is described. Excellent yields of 3,5-bis(arylmethylidene)thiopyranones are achieved in a facile one-pot general procedure.
描述了在室温下,在 N-(三甲基甲硅烷基)二乙胺和 5 M 高氯酸锂的二乙醚存在下,多种芳香醛与四氢噻喃-4-酮的双交叉羟醛缩合反应。3,5-双(芳基亚甲基)噻喃酮的高产率是通过简单的一锅通用程序实现的。
A highly efficient method for solvent-free synthesis of bisarylmethylidenes of pyranones and thiopyranones
作者:M. Saeed Abaee、Mohammad M. Mojtahedi、M. Mehdi Zahedi、Roholah Sharifi
Synthesis of Bis(arylmethylidene)thiopyranones and Crystal Structure of the Phenyl Derivative
作者:M. Saeed Abaee、Mohammad M. Mojtahedi、M. Mehdi Zahedi、A. Wahid Mesbah、Nafiseh Mohaddes Ghandchi、Werner Massa
DOI:10.1080/10426500701542759
日期:2007.10.18
A convenient method is offered for double aldol condensation of tetrahydrothiopyran-4-one with aromatic aldehydes under LiBr catalysis. An X-ray analysis verifies the proposed structures.
Preparation of thiopyrano- and pyrano[4,3-c]pyrazoles. Structure elucidation of dehydro coproducts
作者:George C. Rovnyak、Virginia Shu
DOI:10.1021/jo01328a041
日期:1979.7
ROVNYAK G. C.; SHU V., J. ORG. CHEM., 1979, 44, NO 14, 2518-2522