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2003, Vol.32, No.3

220-221

The First Examples of Stable Benzenes Fused with Two Three-membered Rings: Synthesis and Structures of the Two Stereoisomers of Bis(silacyclopropa)benzenes

Tajima Tomoyuki 1 , Hatano Ken 1 , Sasaki Takayo 1 , Sasamori Takahiro 1 , Takeda Nobuhiro 1 , Tokitoh Norihiro 1
1 Institute for Chemical Research, Kyoto UniversityGokasho, Uji, Kyoto
https://doi.org/10.1246/cl.2003.220

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Abstract

Two stereoisomers of the first stable bis(silacyclopropa)benzenes (1a, 1b) were successfully synthesized by the reaction of Tbt(Dip)SiLi2 (3) [Tbt = 2,4,6-tris[bis(trimethylsilyl)methyl]phenyl, Dip = 2,6-diisopropylphenyl] with 1,2,4,5-tetrabromobenzene. The molecular structures of 1a and 1b were discussed on the basis of the X-ray structural analyses.

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