First preparation and structural determination of 1,1-disubstituted dibenzo[bc,fg][1,4]silathiapentalene derivatives by x-ray crystallographic analysis and MO calculations

• Published in: Heteroatom chemistry Vol. 7; no. 2; pp. 143 - 147
• Main Authors: Kimura, Takeshi, Izumi, Yukiko, Furukawa, Naomichi, Minoshima, Yoshihiro
• Format: Journal Article
• Language: English
• Published: Florida VCH Publishers, Inc 1996

1,1‐Dimethyldibenzo[bc,fg][1,4]silathiapentalene (1a) was prepared by treatment of 1,9‐bis(methyl‐sulfinyl)dibenzothiophene with EtMgBr or of dibenzothiophene with n‐butyllithium, and then with dimethyl dichlorosilane. The structure of 4,4‐dimethyl‐dibenzo[bc,fg][1,4]silathiapentalene 1‐oxide (2), o...