期刊
JOURNAL OF FLUORINE CHEMISTRY
卷 125, 期 4, 页码 603-607出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jfluchem.2003.11.032
关键词
1,3-proton shift reaction; imines; operationally convenient conditions; fluorine and compounds
The standard reaction conditions commonly used for the condensation of carbonyl compounds with amines were found to be synthetically inefficient for preparation of the imines derived from trifluoroacetophenone and benzylamines owing to the susceptibility of these imines to 1,3-proton shift. Application of a low-basicity method, using instead of free benzylamines their salts formed from acetic acid (AA), allowed synthesis of the target compounds in chemically pure form and excellent chemical yields. (C) 2004 Elsevier B.V. All rights reserved.
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