期刊
TETRAHEDRON
卷 69, 期 49, 页码 10544-10551出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tet.2013.10.052
关键词
Solvent-free reaction; One-pot synthesis; Multi-component reactions; Phosphorus-containing chromenes; Tetramethylguanidine
资金
- Pusan National University
- BK21 PLUS Program
Synthesis of 2-amino-4H-chromen-4-ylphosphonates and 2-amino-4H-chromenes has been accomplished by the reaction of salicylaldehyde, malononitrile, dialkyl/diphenylphosphites catalyzed by 1,1,3,3-tetramethylguanidine (TMG) under neat conditions at room temperature. The applicability of catalytic TMG for the synthesis of 2-amino-4H-chromenes also has been described. The mild reaction conditions, simple work-up procedure, and use of TMG as an inexpensive catalyst provides an economical protocol for the preparation of important phosphorus-containing compounds. (C) 2013 Elsevier Ltd. All rights reserved.
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