期刊
TETRAHEDRON
卷 65, 期 45, 页码 9152-9156出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tet.2009.09.030
关键词
2-(Perfluoroalkyl)-4H-chromene; Salicyl N-tosylimine; Salicylaldehyde; Methyl 2-perfluoroalkynoate; Regioselectivity
资金
- National Natural Science Foundation of China [20872088]
- Shanghai Municipal Education Commission [08ZZ44, J50102]
Et3N-catalyzed reactions of salicyl N-tosylimines or salicylaldehydes with methyl 2-perfluoroalkynoates proceed smoothly at room temperature in dichloromethane (DCM) or dimethyl sulfoxide (DMSO) to give the corresponding fluorinated chromenes in good to excellent yields with high regioselectivity. (C) 2009 Elsevier Ltd. All rights reserved.
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