bis(2-ethoxyethynyl)-dimethylgermane | 683775-20-4

• 分子结构分类: 有机化合物 - 有机盐 - 有机金属盐
• 英文名称: bis(2-ethoxyethynyl)-dimethylgermane
• CAS: 683775-20-4
• 化学式: C₁₀H₁₆GeO₂
• 分子量: 240.826
• InChiKey: WPRHSFJCAFFQDZ-UHFFFAOYSA-N

物化性质

• 沸点：
  218.3±23.0 °C(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.77
• 重原子数：
  13.0
• 可旋转键数：
  2.0
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.6
• 拓扑面积：
  18.46
• 氢给体数：
  0.0
• 氢受体数：
  2.0

反应信息

• 作为反应物：
  描述：

  bis(2-ethoxyethynyl)-dimethylgermane 以 neat (no solvent) 为溶剂， 以64%的产率得到2-[2-ethoxyethynyl(dimethyl)germyl]ethenone
  参考文献：
  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.

  DOI：

  10.1023/a:1026092218064
• 作为产物：
  描述：

  乙氧基乙炔 、 二氯二甲基锗 在 正丁基锂 作用下， 以 not given 为溶剂， 以65%的产率得到bis(2-ethoxyethynyl)-dimethylgermane
  参考文献：
  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.

  DOI：

  10.1023/a:1026092218064

文献信息

• Ketene organoelement derivatives. Synthesis of bis(l-R-2-oxovinyl)silanes and germanes (R = SiMe3, GeMe3, SnMe3)
  作者：S. V. Gruener、R. N. Ezhov、V. S. Petrosyan

  DOI：10.1007/s11172-009-0098-z

  日期：2009.4

  Earlier unknown 1,3-bisketene organoelement derivatives RMeE(C(E ’Me3)=C=O)2 (E = Si, Ge; E’ = Si, Ge, Sn) have been synthesized by the reaction of bis(alkoxyethynyl)silanes and -germanes with Me3E’Hal. Bis(1-trimethylsilyl-2-oxovinyl)silane is also formed by the reaction of trimethylsilyl- and (dimethylsilylene)bisketenes with dimethylsilylene bistriflate and trimethylsilyl triflate, respectively. Addition of nucleophiles to the ketene fragment of compounds synthesized has been studied.

  之前未知的1,3-双烯基烯烃有机元素衍生物RMeE(C(E’Me3)=C=O)2（E = Si, Ge; E’ = Si, Ge, Sn）通过双(烷氧基乙炔基)硅烷和-锗烷与Me3E’Hal的反应合成。此外，双(1-三甲基硅基-2-氧代乙烯基)硅烷也是通过三甲基硅基-和(二甲基硅烯)双烯烃与二甲基硅烯双三氟甲磺酸酯和三甲基硅基三氟甲磺酸酯分别反应生成的。对合成化合物中烯烃片段的亲核试剂的加成进行了研究。