In this work, we discovered that bis(trimethylsilyl)acetylene (BTMSA) could be synthesized by the reaction of calcium carbide (CaC₂) directly with N‐(trimethylsilyl)imidazole (TMSIm) in dichloromethane using CuBr as the catalyst, and reaction could occur efficiently at 100 °C. Control experiment indicated that the reaction did not proceed via acetylene pathway. As far as we know, this is the first work for BTMSA synthesis by direct reaction of CaC₂ and a silylation reagent under mild conditions.

中文翻译：

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CaC2与N-（三甲基甲硅烷基）咪唑的直接反应合成双（三甲基甲硅烷基）乙炔（BTMSA）

在这项工作中，我们发现，使用CuBr作为催化剂，电石（CaC ₂）与N-（三甲基甲硅烷基）咪唑（TMSIm）在二氯甲烷中直接反应，可以合成双（三甲基甲硅烷基）乙炔（BTMSA）。在100°C时有效发生。对照实验表明该反应没有通过乙炔途径进行。据我们所知，这是在温和条件下通过CaC ₂和甲硅烷基化试剂直接反应进行BTMSA合成的第一项工作。