期刊
TETRAHEDRON LETTERS
卷 45, 期 39, 页码 7243-7246出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2004.08.032
关键词
asymmetric catalysis; ketones; Mannich reaction; amino acids; pyrrolidine-sulfonamide
The novel pyrrolidine-sulfonamide I has been prepared and used successfully to catalyze Mannich-type reactions between ketones and alpha-imino esters. The process is used to efficiently synthesize functionalized alpha-amino acid derivatives with excellent levels of regio-, diastereo-, and enantio-selectivity. (C) 2004 Elsevier Ltd. All rights reserved.
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