Solvent-free oxidation of ethylbenzene over LDH-hosted Co(II) Schiff base of 2-hydroxy-1-naphthaldehyde and 4-amino benzoic acid

被引：15

作者：

Khare, Savita ^{[1
]}

Kirar, Jagat Singh ^{[1
]}

Parashar, Swati ^{[1
]}

机构：

[1] Devi Ahilya Vishwavidyalaya, Sch Chem Sci, Takshashila Campus,Khandwa Rd, Indore 452001, Madhya Pradesh, India

来源：

INORGANIC AND NANO-METAL CHEMISTRY | 2019年 / 49卷 / 07期

关键词：

Layered double hydroxide; heterogeneous catalyst; Co(II) Schiff base complex; ethylbenzene oxidation; tert-butylhydroperoxide; LIQUID-PHASE OXIDATION; CATALYTIC-ACTIVITY; SELECTIVE OXIDATION; TERT-BUTYLHYDROPEROXIDE; HETEROGENEOUS CATALYST; COMPLEX; CYCLOHEXENE; HYDROTALCITES; INTERCALATION; ACETOPHENONE;

D O I：

10.1080/24701556.2019.1653320

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Co(II) Schiff base complexes derived by condensation of 4-amino benzoic and 2-hydroxy-1-naphthaldehyde was immobilized into layered double hydroxide, {LDH-[NAPABA-Co(II)]} and characterized by various techniques namely ICP-AES, SEM, TEM, EDX, XRD, FTIR, BET surface area, EPR, TGA, and DRUV-vis. spectroscopy. The structures of the Co(II) Schiff base complex are optimized by DFT calculations. The catalytic activity of the heterogenized Co(II) Schiff base complex for the oxidation of ethylbenzene using tert-butylhydroperoxide is studied under a solvent-free condition. Ethylbenzene upon oxidation gave benzaldehyde, acetophenone, and benzoic acid with 67.4% conversion of ethylbenzene and 99.57% selectivity of acetophenone. The catalyst is recyclable up to six cycles without notable loss of their activity.

引用

页码：204 / 216

页数：13

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