Silver-Catalyzed Intramolecular Cyclization of o-(1-Alkynyl)benzamides: Efficient Synthesis of (1H)-Isochromen-1-imines
β Scribed by Guannan Liu; Yu Zhou; Deju Ye; Dengyou Zhang; Xiao Ding; Hualiang Jiang; Hong Liu
- Publisher
- John Wiley and Sons
- Year
- 2009
- Tongue
- English
- Weight
- 224 KB
- Volume
- 351
- Category
- Article
- ISSN
- 1615-4150
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## Abstract 1βArylβ1__H__βbenzotriazole derivatives were synthesized __via__ intramolecular cyclization of easily obtained triazenes, using CuI as the catalyst, DMSO as the solvent, __tβ__BuONa as the base, and 1,10βphenanthroline as the ligand, in up to 97% yield. The synthesis is regiospecific an