Recyclable MeOPEG-clicked TEMPO catalyst for one-pot aerobic double dehydrogenation of alcohols to nitriles

被引：9

作者：

Chinnusamy, Tamilselvi ^{[1
]}

机构：

[1] Indian Inst Sci Educ & Res, Sch Chem, Vithura Campus, Thiruvananthapuram 695551, Kerala, India

来源：

CATALYSIS COMMUNICATIONS | 2019年 / 119卷

关键词：

MeOPEG-clicked TEMPO; Nitriles; Recyclable catalyst; Dehydrogenation of alcohols; Click reaction; POLY(ETHYLENE GLYCOL)-SUPPORTED TEMPO; OXIDATIVE SYNTHESIS; SELECTIVE OXIDATION; BENZYLIC ALCOHOLS; SOLUBLE POLYMERS; PRIMARY AMINES; ARYL NITRILES; CYANATION; N; N-DIMETHYLFORMAMIDE; IMMOBILIZATION;

D O I：

10.1016/j.catcom.2018.08.021

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In this study, TEMPO was efficiently grafted on MeOPEG support by copper-catalyzed (3 + 2) cycloaddition reaction. The newly immobilized MeOPEG-clicked TEMPO catalyst was characterized by NMR, IR, and MALDI-TOF. Subsequently, it was used for one-pot aerobic double dehydrogenation of alcohols to nitriles using aqueous ammonia as the nitrogen source and O-2 (1 atm) as the terminal oxidant. The catalytic efficiency was also reported with various benzyl, alkyl, and heteroaromatic alcohols. The reactivity of this catalyst is comparable with that of unmodified TEMPO. Furthermore, the new MeOPEG-clicked TEMPO catalyst could be easily recovered by precipitation and recycled up to five runs.

引用

页码：51 / 56

页数：6

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