Abstract
The kinetic stabilization using sterically demanding bulky substituents or ligands provides us an exciting opportunity to explore a large variety of organoelement unsaturated compounds. We recently demonstrated that a new class of fused-ring bulky octa-R-substituted s-hydrindacenyl groups (Rind groups) can act as unique protecting groups in the main group chemistry as well as in the transition metal chemistry. This manuscript describes the recent advances in the chemistry of π-conjugated systems containing sp2-hybridized silicon atoms stabilized by the bulky Rind groups. The synthesis and characterization of various π-conjugated disilene compounds as well as a planar rhombic charge-separated tetrasilacyclobutadiene incorporating the bulky Rind groups are covered.
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Acknowledgment
The author thanks the Ministry of Education, Culture, Sports, Science, and Technology of Japan for the Grant-in-Aid for Specially Promoted Research (No. 19002008) and Scientific Research (B) (Nos. 24350031 and 15H03788). This work was also partially supported by MEXT-Supported Program for the Strategic Research Foundation at Private Universities 2014–2018, subsidy from MEXT and Kindai University. The calculations and experiments discussed in this article have been performed with many collaborators, whose names appear in the references. The author wishes to express his thanks to all of them for their kind collaboration, in particular, Prof. Kohei Tamao, for his continuous discussions.
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Matsuo, T. (2015). π-Conjugated Disilenes and Tetrasilacyclobutadiene. In: Akasaka, T., Osuka, A., Fukuzumi, S., Kandori, H., Aso, Y. (eds) Chemical Science of π-Electron Systems. Springer, Tokyo. https://doi.org/10.1007/978-4-431-55357-1_23
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DOI: https://doi.org/10.1007/978-4-431-55357-1_23
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