期刊
TETRAHEDRON LETTERS
卷 54, 期 46, 页码 6178-6180出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2013.08.092
关键词
Ga(OTf)(3); Catalysis; [4+3] Cycloaddition; 1,3-Diarylpropynones; 2,4-Disubstituted-3H-benzo[b][1,4]diazepines
资金
- National Natural Science Foundation of China [20772088, 21172163]
- Priority Academic Program Development of Jiangsu Higher Education Institutions
Simple and efficient Ga(OTf)(3)-catalyzed [4+3] cycloaddition of 1,3-diarylpropynones and o-phenylenediamines is developed for the preparation of 2,4-disubstituted-3H-benzo[b][1,4]diazepines. The reaction has advantages of using a green solvent, generating a minimal amount of waste, and easy catalyst recycle. (C) 2013 Elsevier Ltd. All rights reserved.
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