期刊
TETRAHEDRON
卷 63, 期 43, 页码 10684-10692出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tet.2007.07.087
关键词
alkynes; radical addition; difluoromethylene vinylic iodides; sonogashira coupling
The addition of gem-difluorinated alkyl iodides to alkynes initiated by AIBN neatly gave the corresponding difluoromethylene vinyl iodides among which the stereoselectivity of aromatic acetylenes was high. The further coupling reaction of E-phenyl difluoromethylene vinyl iodides with terminal alkynes in the presence of catalytic palladium afforded the substituted difluorinated enynes. (C) 2007 Elsevier Ltd. All rights reserved.
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