Layered crystalline chiral salen Mn(III) complexes immobilized on organic polymer-inorganic hybrid zinc phosphonate-phosphate as efficient and reusable catalysts for the unfunctionalized olefin epoxidation

被引:8
|
作者
Huang, Jing [1 ,2 ]
Yuan, Li [1 ]
Cai, Jiali [3 ]
Chen, Xiaohong [1 ]
Qi, Dengwei [4 ]
机构
[1] Xihua Univ, Coll Sci, Res Ctr Adv Computat, Chengdu 610039, Peoples R China
[2] Southwest Univ, Inst Clean Energy & Adv Mat, Chongqing 400715, Peoples R China
[3] Southwest Univ, Coll Rongchang, Chongqing, Peoples R China
[4] Ba Shu Middle Sch, Chongqing 400023, Peoples R China
关键词
Asymmetric epoxidation; Unfunctionalized olefins; Jacobsen's catalyst; Heterogeneous catalyst; Alkyldiamines; ASYMMETRIC EPOXIDATION;
D O I
10.1016/j.inoche.2016.01.001
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Chiral Mn(III) salen complexes grafted on ZnPS-PVPA (zinc poly(styrene-phenylvinyl-phosphonate)-phosphate) upon alkyldiamines through a facile method are evaluated by the asymmetric epoxidation of unfunctionalized olefins. Superior catalytic performances are obtained (conv%, up to >99; ee%, up to >99) whenever with m-CPBA or NaClO or NaIO4 as the oxidant. The additives such as NMO, PPNO as well as imidazole play different roles in the corresponding oxidation system. In addition, the supported catalysts could be reused nine times with the retention of their efficiency. These results highlight the potentiality of ZnPS-PVPA as the support for immobilizing chiral salen Mn(III) to be employed in oxidation reactions. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码:4 / 8
页数:5
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