Subvalent species of silicon have been generated by the dehalogenation of dichloro-bis(2,6-dimethyl-piperidino)silane (I), dichloro-bis(diethylamino)silane and dichloro(diisopropylamino)methylsilane (VI) with Na/K alloy in hexane containing benzene or biphenyl. From the reaction mixtures products formed by insertion into CH bonds of the aromatic compounds, have been isolated or detected as the aryl
通过在Na / K合金中将二氯双(2,6-二甲基哌啶子基)硅烷(I),二氯双(二乙基氨基)硅烷和二氯(二异丙氨基氨基)甲基硅烷(VI)脱卤化生成了硅的亚种。含苯或联苯的己烷。从反应混合物中,通过芳族化合物的CH键插入而形成的产物已经被分离或检测为芳基取代的氨基硅烷(II,IV,VII和IX)和双(氨基硅烷基)亚苯基(V和VIII)。此外,在芳族环被1,2-取代后形成了苯并[ d ] -1,3-二氢-1,2,3-三甲硅烷(III,IX和XII)。其他产品是三(二乙氨基)硅烷(B化合物I,II,III,VI,XI和XII用元素分析和光谱数据(MS,NMR:1 H,13 C,29 Si)表征。化合物IV,V,VII,VIII,IX和X已通过MS检测,部分通过NMR和IR数据表征。已对I进行了X射线结构分析。
[(NHC)Yb{N(SiMe<sub>3</sub>)<sub>2</sub>}<sub>2</sub>]-Catalyzed Cross-Dehydrogenative Coupling of Silanes with Amines
作者:Weilong Xie、Hongfan Hu、Chunming Cui
DOI:10.1002/anie.201205317
日期:2012.10.29
cross‐dehydrogenative coupling of silanes with a range of primary and secondary amines to yield silylamines in high yields (82–100 %) under mild reaction conditions. The catalytic activity and selectivity of the rare‐earth‐metal silylamides are modulated by altering the stericbulk of the NHC.
Photoactivated silicon–oxygen and silicon–nitrogen heterodehydrocoupling with a commercially available iron compound
作者:Matthew B. Reuter、Michael P. Cibuzar、James Hammerton、Rory Waterman
DOI:10.1039/c9dt04870g
日期:——
Silicon-oxygen and silicon-nitrogen heterodehydrocoupling catalyzed by the commercially available cyclopentadienyldicarbonylirondimer [CpFe(CO)2]2 (1) under photochemical conditions is reported. Reactions between alcohols and PhSiH3 with catalytic 1 under visible-light irradiation produced silyl ethers quantitively. Reactions between either secondary or tertiary silanes and alcohols also produced
Dehydrocoupling reactions of amines with silanes catalyzed by [(Et2N)3U][BPh4]
作者:Jia Xi Wang、Aswini K Dash、Jean Claude Berthet、Michel Ephritikhine、Moris S Eisen
DOI:10.1016/s0022-328x(00)00410-1
日期:2000.9
Dehydrocoupling reactions of primary amines RNH2 with PhSiH3 were catalyzed by [(Et2N)3U][BPh4] to give the corresponding aminosilanes PhSiH3−n(NHR)n (n=1–3), the relative yields of the products were found to be dependent on the experimental conditions and on the nature of R. For a primary silane (PhSiH3), the reactivity of RNH2 follows the order primary>secondary>tertiary. Similar dehydrocoupling
Si–N Heterodehydrocoupling with a Lanthanide Compound
作者:Michael P. Cibuzar、Rory Waterman
DOI:10.1021/acs.organomet.8b00372
日期:2018.12.10
[LaN(SiMe3)2}3THF2] (1) is an effective precatalyst for the heterodehydrocoupling of silanes and amines. Coupling of primary and secondary amines with aryl silanes was achieved with a loading of 0.8 mol % of [LaN(SiMe3)2}3THF2]. With primary amines, generation of tertiary and sometimes quaternary silamines was facile, often requiring only a few hours to reach completion, including new silamines Ph3Si(nPrNH)