论文成果
Convenient Synthesis of Benzothiazoles and Benzimidazoles through Bronsted Acid Catalyzed Cyclization of 2-Amino Thiophenols/Anilines with beta-Diketones
- 点击次数:
- 论文类型:期刊论文
- 发表时间:2014-02-07
- 发表刊物:ORGANIC LETTERS
- 收录刊物:PubMed、SCIE、Scopus
- 文献类型:J
- 卷号:16
- 期号:3
- 页面范围:764-767
- ISSN号:1523-7060
- 摘要:Bronsted acid catalyzed cyclization reactions of 2-amino thiophenols/anilines with beta-diketones under oxidant-, metal-, and radiation-free conditions are described. Various 2-substituted benzothiazoles/benzimidazoles are obtained in satisfactory to excellent yields. Different groups such as methyl, chloro, nitro, and methoxy linked on benzene rings were tolerated under the optimized reaction conditions.