Recyclable Magnetic Nanoparticle-Supported Iodoarene Catalysts for Oxidation of 4-Alkoxyphenols to Quinones

被引：12

作者：

Nambu, Hisanori ^{[1
]}

Shimokawa, Ikumi ^{[1
]}

Fujiwara, Tomoya ^{[1
]}

Yakura, Takayuki ^{[1
]}

机构：

[1] Inst Univ Toyama, Grad Sch Med & Pharmaceut Sci, Sugitani, Toyama 9300194, Japan

来源：

ASIAN JOURNAL OF ORGANIC CHEMISTRY | 2016年 / 5卷 / 04期

关键词：

alkoxyphenols; hypervalent iodine; magnetic nanoparticles; oxidation; quinones; HYPERVALENT IODINE OXIDATION; RECOVERABLE OSMIUM CATALYSTS; 4-IODOPHENOXYACETIC ACID; HETEROGENEOUS CATALYST; EFFICIENT SYNTHESIS; P-ALKOXYPHENOLS; REAGENTS; REACTIVITY; ALCOHOLS; DIHYDROXYLATION;

D O I：

10.1002/ajoc.201600036

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Iodoarene catalysts immobilized on magnetite (Fe3O4) were developed. The reactivity of catalysts 4a and 4b were similar to that of 4-iodophenoxyacetic acid (3) for the oxidation of 4-alkoxyphenols in the presence of Oxone((R)) as a co-oxidant to give the corresponding p-quinones in high yields. In addition, 4b was readily recovered by the use of an external magnet and was recycled up to eight times. This is the first example of a magnetic, nanoparticle-supported iodoarene catalyst.

引用

页码：486 / 489

页数：4

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