期刊
SCIENCE IN CHINA SERIES B-CHEMISTRY
卷 52, 期 9, 页码 1314-1320出版社
SCIENCE PRESS
DOI: 10.1007/s11426-009-0203-z
关键词
Sonogashira; protected homopropargyl alcohol; 2,5-disubstituted 3-bromofurans
资金
- National Natural Science Foundation of China [20421202, 20372033]
This paper presents Sonogashira coupling reaction of aryl bromides with protected homopropargyl alcohols such as tert-butyldimethyl(1-phenylbut-3-ynyloxy)silane and tert-butyldimethyl(1-(2,4-dichlorophenyl)but-3-ynyloxy)silane in piperidine catalyzed by PdCl2/PPh3 without copper(I). The coupling products, disubstituted acetylene, are obtained in good or excellent yields. These products can be further used for the synthesis of 2,5-disubstituted 3-bromofurans.
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