Bis(alkoxyethynyl)-substituted silanes,germanes, and stannanes: synthesis and pyrolysis |
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Authors: | Gruener S. V. Wrackmeyer B. Yezhov R. N. Petrosyan V. S. |
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Affiliation: | (1) Department of Chemistry, M. V. Lomonosov Moscow State University, Leninskie Gory, Moscow, 119992, Russian Federation;(2) Universität Bayreuth, 30 Universitätsstraße, Bayreuth, D-95440, Germany |
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Abstract: | Previously unknown bis(alkoxyethynyl)-substituted silanes, germanes, and stannanes were synthesized. Pyrolysis of bis(ethoxyethynyl)-substituted silanes and germanes was studied. Depending on the reaction conditions (pyrolysis in a solvent or vacuum pyrolysis without a solvent), the process affects either one ethoxyethynyl group to give (ethoxyethynyl)silyl(-germyl)ketenes or both ethoxyethynyl groups, affording silyl- and germylbisketenes. Pyrolysis of bis(alkoxyethynyl)dimethylstannanes follows another route, resulting in 1,1-bis(alkoxy)-2,2-bis[(alkoxyethynyl)dimethylstannyl]ethenes. |
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Keywords: | bis(alkoxyethynyl)-substituted silanes, germanes, and stannanes pyrolysis silylenebisketenes (ethoxyethynyl)silylketenes (ethoxyethynyl)germylketenes dimethylsilylene-bis(N,N-dimethyl)acetamide dimethylgermylene-bis(N,N-dimethyl)acetamide |
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