期刊
TETRAHEDRON
卷 63, 期 48, 页码 11850-11855出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tet.2007.09.034
关键词
cyclopenta[b]quinoline; cyclopropanation; dirhodium(II); diazo compounds; carbene
A one-pot process to introduce diazoacetoacetate functionality into quinoline was identified with excellent yield and regioselectivity. An intramolecular cyclopropanation of the resulting adducts gave tetracyclic cyclopenta[b]quinoline derivatives in nearly quantitative yields. A synthetic utility of the tetracyclic derivatives was examined by a simple ring opening reaction to afford cyclopenta[ b] quinoline in a good yield. (c) 2007 Elsevier Ltd. All rights reserved.
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