作者:Narayan S. Hosmane、Narayan N. Sirmokadam、Mark N. Mollenhauer
DOI:10.1016/0022-328x(85)87034-0
日期:1985.1
The reaction of B5H9 with (CH3SiCCR (R = (CH3)3Si, CH3, or H) without the use of a Lewis base, heat, solvent, or large volume gas bulbs produced air-stable [R(H)CCSi(CH3)3]3B and 2-(CH3)3Si-3-R-2,3-C2B4H6 in quantitative yields. However, this reaction was very slow. The reaction of BH3 · THF with (CH3)3SiCCR at 0°C also quantitatively produced the corresponding trivinylborane derivative, in which
B的反应5 ħ 9与(CH 3 SiCCR(R =(CH 3)3的Si,CH 3,或H),而无需使用路易斯碱,热,溶剂或大量的气体产生泡的空气稳定的[R(H)C(CSi(CH 3)3 ] 3 B和2-(CH 3)3 Si-3-R-2,3-C 2 B 4 H 6的定量收率。 BH 3 ·THF与(CH 3)3的反应非常缓慢SiCCR在0°C时也定量生成相应的三乙烯基硼烷衍生物,其中硼仅与每个乙烯基的含硅烯烃碳键合。制备碳硼烷的最满意的方法涉及B的混合物的液相反应5 ħ 9和(CH 3)3 SiCCR在135℃在高真空不锈钢反应器中形成硼氢化物种。通过真空分馏容易地以克的量分离出高纯度的碳硼烷产物。所有新产品均具有IR,1 H,11 B,13 C和29的特征Si NMR光谱,质谱和元素分析(如果可能)。