期刊
ORGANIC LETTERS
卷 13, 期 9, 页码 2228-2231出版社
AMER CHEMICAL SOC
DOI: 10.1021/ol200481u
关键词
-
资金
- Midcareer Researcher Program [R01-2009-008-3940]
- Basic Science Research Program [2010-0017149, 2010-0007737]
- Ministry of Education, Science and Technology (MEST)
An NHC-catalyzed, regio- and stereoselective oxidative cyclization of o-alkynylbenzaldehydes bearing an unactivated alkyne moiety as an internal electrophile as been developed to afford phthalides and isocoumarins. A single organocatalytic system enabled two sequential C-O bond formations to take place in an atom economical manner via highly efficient dual activation. Molecular oxygen in air could be utilized as a source of an oxygen atom for the oxidation of aldehydes to the corresponding benzoic acids under our newly developed reagent system.
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