A new library of phosphonium salts has been synthesized from the reaction of tris‐(2,6‐dimethoxyphenyl)carbenium with different phosphines. All these phosphoninum salts were efficient phase‐transfer catalysts for alkylation of 1,3 dicarbonyl compounds. One compound, a bifunctional phosphonium salt, prepared from tris‐(2,6‐dimethoxyphenyl)carbenium and an aminophosphine, was found to be an efficient catalyst for CO₂ fixation reactions with epoxides under mild conditions.

中文翻译：

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由膦和碳鎓合成os盐：高效的二氧化碳固定和相转移催化剂

由三（2,6-二甲氧基苯基）carb与不同的膦反应合成了一个新的library盐文库。所有这些膦酸铵盐都是有效的相转移催化剂，可用于1,3二羰基化合物的烷基化。发现一种化合物，由三（2,6-二甲氧基苯基）碳鎓和氨基膦制备的双官能salt盐是在温和条件下与环氧化物固定CO ₂的有效催化剂。