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 fused1,2,3-benzothiadiphospholes with acetyl chloride, in the presence of AlCl3, leads to fused1,3-benzothiaphospholes, in which an unexpected phosphorus-carbonexchange 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.