负载Dawson结构磷钨酸催化剂及其在有机反应中应用研究进展

Wells－Dawson型磷钨酸（ H6 P2 W18 O62（ HP2 W）是一种具有超强酸性和显著稳定性的绿色环保型催化剂，可以代替传统催化剂HF， HCl， H2 SO4在均相和非均相中发生反应，比Keggin型磷钨酸H3 PW12 O40（ HPW）催化活性还高。综述了近几年利用不同载体制备负载Dawson型磷钨酸催化剂的方法及其在催化有机反应中的研究现状，并对新型载体金属有机骨架和负载Dawson型磷钨酸未来的发展前景进行了展望。

Research progress of supported wells-dawson phosphotungstic acid catalyst and its application in organic synthesis

Wells-Dawson phosphotungstic acid （ H6 P2 W18 O62 ＆#183; xH2 O） possesses super -acidity and remarkable stability both in solution and in the solid state.These properties make it suitable as environmental catalytic material in homogeneous and heterogeneous liquid-phase reactions replacing the conventional liquid acids （ HF, HCl, H2 SO4 , etc.） .The catalytic activi-ty of Wells-Dawson phosphotungstic acid is better than Keggin-type according to the earlier literature.So researching it is still meaningful.The reviewed literature on preparation methods of supported phosphotungstic acid using differernt carriers and its application in organic synthesis is focused on the recent years.And we have also prospected the future trend in the applica-tion of Wells-Dawson phosphotungstic acid and new support（ metal-organic framework） .