Readily-available triarylphosphines are explored as organocatalysts for the hydroarsination reaction. When compared to transition metal catalysis, phosphine organocatalysis greatly improved solvent compatibility of the hydroarsination of nitrostyrenes. Upon complete conversion, arsine products were isolated in up to 99% yield while up to 48% of the phosphine catalyst was still active. A mechanism was proposed and structure-activity analysis regarding catalyst activity concluded that sterically-bulkier catalysts were effective at minimizing catalyst deactivation.

中文翻译：

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空气稳定的膦有机催化剂用于加氢砷化反应

研究了现成的三芳基膦作为加氢砷化反应的有机催化剂。与过渡金属催化相比，膦有机催化大大改善了硝基苯乙烯加氢芳构化的溶剂相容性。完全转化后，以高达99％的收率分离出砷化氢产物，同时高达48％的膦催化剂仍然具有活性。提出了一种机理，并针对催化剂活性进行了结构活性分析，得出的结论是，体积较大的催化剂可有效减少催化剂失活。