甲氧基乙炔 、 二氯二甲基锗 在
正丁基锂 作用下,
以
not given 为溶剂,
以70%的产率得到dimethyl-bis(methoxyethynyl)germanium
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名称:
摘要:
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.