期刊
JOURNAL OF ORGANIC CHEMISTRY
卷 74, 期 19, 页码 7403-7406出版社
AMER CHEMICAL SOC
DOI: 10.1021/jo901379h
关键词
-
资金
- National Natural Science Foundation of China [20672091]
An efficient synthetic procedure for the preparation of fused 2,3-dihydrofuran derivatives was developed with the assistance of pyridinium ylide. A sequential one-pot, two-step tandem reaction starting from pyridine, aromatic aldehyde, dimedone, or 4-hydroxycoumarin and alpha-phenacyl bromide or p-nitrobenzyl bromide with triethylamine as catalyst proceeded smoothly in acetonitrile. H-1 NMR spectroscopy and single-crystal analysis demonstrated that the obtained 2,3-dihydrofurans are trans isomers.
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