Tandem addition-cyclization reaction catalyzed by ytterbium chloride： An efficient one-step synthesis of 2-amino-4H-3,1-benzothiazine

A clean, efficient method to synthesize 2-amino-4H-3,1-benzothiazines by ytterbium chloride-catalyzed tandem addition-cycliza- tion reaction of o-aminocinnamate and isothiocyanates under solvent-free conditions is developed.

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Bibliographic Details
Published in:中国科学：技术科学英文版 2013 (3), p.717-723
Main Author: HUANG Jie YU Yong HUA Lu YAO ZhiGang XU Fan SHEN Qi
Format: Article
Language:English
Subjects:
一步合成
串联
催化
加成
氯化镱
环化反应
苯并噻嗪
邻氨基
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Description
Summary:A clean, efficient method to synthesize 2-amino-4H-3,1-benzothiazines by ytterbium chloride-catalyzed tandem addition-cycliza- tion reaction of o-aminocinnamate and isothiocyanates under solvent-free conditions is developed.
ISSN:1674-7321
1869-1900