Sulfur-Promoted Redox Cyclization of 2,2′-Dinitrodiphenyl Disulfides and Benzylamines

被引：0

作者：

Teramoto, Masahiro ^{[1
,2
]}

Imoto, Mitsutaka ^{[1
]}

Takeda, Motonori ^{[1
]}

Mizuno, Takumi ^{[1
]}

Nomoto, Akihiro ^{[2
]}

Ogawa, Akiya ^{[2
]}

机构：

[1] Seika Corp, 1660-627 Nishihama, Wakayama 6410036, Japan

[2] Osaka Prefecture Univ, Grad Sch Engn, Dept Appl Chem, Naka Ku, 1-1 Gakuen Cho, Sakai, Osaka 5998531, Japan

来源：

SYNTHESIS-STUTTGART | 2021年 / 53卷 / 14期

关键词：

redox cyclization; benzothiazoles; 2,2 '-dinitrodiphenyl disulfides; benzylamines; elemental sulfur; atom-economical; ELEMENTAL SULFUR; HIGHLY EFFICIENT; DIRECT ARYLATION; BENZOTHIAZOLES; CONDENSATION; ABPBT;

D O I：

10.1055/a-1430-5100

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

This study aims to develop green and sustainable advanced synthetic methods based on redox cyclization. Elemental sulfur is shown to promote the efficient synthesis of 2-substituted benzothiazoles from 2,2'-dinitrodiphenyl disulfides and benzylamines via redox cyclization in the absence of transition-metal catalysts and solvents. The 2-substituted benzothiazoles are obtained in good to excellent yields. This synthetic methodology is highly atom-economical and does not require any external oxidizing and/or reducing agents.

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页码：2485 / 2493

页数：9

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