The one-step epoxidation of allyl chloride has always been a great challenge for the industrial production. The key of this technology is to find efficient and friendly catalyst. In this paper, three structurally related quaternary ammonium modified polyoxophosphotungstates were synthesized by green and facile method. Among them, [C₁₆H₃₃(CH₃)₃N]₃PW₄O₂₄ and [π-C₅H₅NC₁₆H₃₃]₃PW₄O₂₄ are reaction-controlled phase transfer catalyst (RPTC) and [(C₁₈H₃₇)₂(CH₃)₂N]₃PW₄O₂₄ is temperature-controlled phase transfer catalyst (TPTC). All three catalysts could achieve the epoxidation of allyl chloride with equimolar H₂O₂ under solvent-free and mild conditions. Moreover, the catalysts exhibited excellent catalytic performance and reusability. The catalytic mechanism was explored by FT-IR spectroscopy. The results of kinetic experiments show that the chain length of alkanes and heterocyclic structure of cations have a great influence on the catalytic activity of the catalysts.

烯丙基氯的一步环氧化一直是工业生产中的巨大挑战。该技术的关键是找到有效和友好的催化剂。本文采用绿色简便的方法合成了三种结构相关的季铵改性的聚氧磷钨酸盐。其中，[C ₁₆ H ^ ₃₃（CH ₃）₃ N] ₃ PW ₄ ö ₂₄和[π-C ₅ H ^ ₅ NC ₁₆ ħ ₃₃ ] ₃ PW ₄ ø ₂₄是反应控制的相转移催化剂（RPTC）和[ （C ₁₈高₃₇）₂（CH ₃）₂ N] ₃ PW ₄ O ₂₄是温度控制的相转移催化剂（TPTC）。在无溶剂和温和条件下，这三种催化剂均可实现用等摩尔量的H ₂ O ₂进行烯丙基氯的环氧化。此外，该催化剂表现出优异的催化性能和可重复使用性。FT-IR光谱研究了其催化机理。动力学实验结果表明，烷烃的链长和阳离子的杂环结构对催化剂的催化活性有很大的影响。