Formation of fused 1,3-benzothiaphospholes from fused 1,2,3-benzothiadiphospholes by a simple phosphorus-carbon exchange
作者:Graziano Baccolini、Elisabetta Mezzina、Paolo Edgardo Todesco、Elisabetta Foresti
DOI:10.1039/c39890000122
日期:——
Treatment of fused 1,2,3-benzothiadiphospholes with acetyl chloride, in the presence of AlCl3, leads to fused 1,3-benzothiaphospholes, in which an unexpected phosphorus-carbon exchange has occurred; a single crystal X-ray diffraction of the dimethyl derivative of this new heterocycle confirmed its structure and showed the cis-configuration between the phosphorus Ione pair and the 6-substituent.
在AlCl 3存在下,用乙酰氯处理稠合的1,2,3-苯并噻二磷,会生成稠合的1,3-苯并噻吩磷,其中发生了意想不到的磷-碳交换。该新杂环的二甲基衍生物的单晶X射线衍射证实了其结构,并显示了磷离子对与6-取代基之间的顺式构型。