S-Heterocyclic Carbene with a Disilane Backbone

✍ Scribed by Hidefumi Nikawa; Tsukasa Nakahodo; Takahiro Tsuchiya; Takatsugu Wakahara; G. M. Aminur Rahman; Takeshi Akasaka; Yutaka Maeda; Michael T. H. Liu; Akira Meguro; Soichiro Kyushin; Hideyuki Matsumoto; Naomi Mizorogi; Shigeru Nagase

• Book ID: 101532343
• Publisher: John Wiley and Sons
• Year: 2005
• Tongue: English
• Weight: 125 KB
• Volume: 117
• Category: Article
• ISSN: 0044-8249
• DOI: 10.1002/ange.200502971

✦ Synopsis

Recently, Wiberg and co-workers reported the preparation of tetrathiofulvalene (TTF) analogue 1 with a disilane backbone (see Scheme 1), obtained from the reaction of the isolable disilene 2 with carbon disulfide. [1] Compound 1, with a SiÀSi bond instead of a C=C bond in the TTF ring, may be potentially useful as a new electron donor because of the intriguing electronic properties of the silicon s-conjugate system (SiÀSi), which resembles the carbon p-conjugate system (C = C). Apparently, 1 was formed by the dimerization of the S-heterocyclic carbene (SHC) 3 as the proposed