Novel 1D CuI coordination polymer using phosphorus-nitrogen ligands , active in aerobic oxidation of cyclohexene

被引:1
作者
Garcia, E. [1 ]
Parra-Melipan, S. [1 ]
Vega, A. [2 ,3 ]
Valdebenito, G. [1 ,5 ]
Moya, S. A. [4 ]
Spodine, E. [1 ]
Cancino, P. [1 ]
Aguirre, P. [1 ]
机构
[1] Univ Chile, Fac Ciencias Quim & Farmaceut, Casilla 233, Santiago, Chile
[2] Univ Andres Bello, Fac Ciencias Exactas, Dept Ciencias Quim, Av Republ 498, Santiago, Chile
[3] CEDENNA, Av Libertador Bernardo OHiggins 3363, Santiago, Chile
[4] Univ Santiago Chile, Fac Quim & Biol, Av Libertador Bernardo OHiggins 3363, Santiago, Chile
[5] Univ Bernardo OHiggins, Ctr Integrat Biol & Quim Aplicada, Gen Gana 1702, Santiago, Chile
关键词
Aerobic oxidation; Olefin oxidation; Copper complex; ALUMINA-SUPPORTED MN(II); METAL-ORGANIC FRAMEWORKS; CATALYTIC-OXIDATION; ALLYLIC OXIDATION; ASYMMETRIC EPOXIDATION; COMPLEXES; OLEFINS; COPPER(II); ACETATE; NI(II);
D O I
10.1016/j.ica.2023.121606
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
This work reports the synthesis and characterization of a novel copper(I) coordination polymer, the first one containing a phosphorus-nitrogen ligand, [Cu(& kappa;2-P,N-(diphenylphospino)pyrimidine-2-amine)2Cl]n. This coordination polymer acts as catalyst under homogeneous conditions using molecular oxygen as oxidant. (5 bar and 40 to 120 degrees C). The catalyst shows high conversion for several substrate/catalyst ratio values (400/1 to 12800/1), and the reaction takes place in the absence of additional solvent with the advantages that this entails. The reported system shows 80% conversion for the cyclohexene oxidation in only 15 min of reaction, using a high substrate/catalyst ratio of 3200/1 with turnover number of 10240 h-1. The catalyst only looses 13% of conversion after 4 cycles. The study suggests a radical mechanism assisted by the catalyst that favors the formation of two major products, 2-cyclohexen-1-one and 2-cyclohexen-1-ol.
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页数:6
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