Journal
JOURNAL OF ORGANIC CHEMISTRY
Volume 77, Issue 12, Pages 5239-5244Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jo300957q
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Funding
- Nanyang Technological University
- National Research Foundation of Korea [2012-0001245]
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A cheap, simple, and effective FeCl3-catalyzed Conia-ene cyclization of 2-alkynic 1,3-dicarbonyl compounds was stereospecific to afford alkylidenecyclopentanes in (E)-isomers via the 5-exo-dig pathway. The 5-endo-dig and 6-exo-dig cyclizations were also possible, depending on the structure of the substrates.
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