期刊
EUROPEAN JOURNAL OF ORGANIC CHEMISTRY
卷 2013, 期 13, 页码 2541-2544出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/ejoc.201300037
关键词
Synthetic methods; Polycycles; Lactones; Alkynes; Palladium
资金
- Guangdong Science and Technology Department of China through the Youth Science Research Fund of Wuyi University [2012B091000077, 2012A090300004]
Unsaturated bicyclic carboxylic acids undergo palladium-catalyzed coupling with bromoalkynes to produce -alkynyl lactones in moderate to good yields with excellent chemo- and regioselectivity. The reaction conditions were extremely mild, and functional groups such as methyl, methoxy, chloro, and bromo were tolerated under the optimized reaction conditions. Moreover, -chloroalkenyl lactones were facilely synthesized through chloropalladation/carboesterification of electron-deficient CC bonds by using molecular oxygen as the sole oxidant.
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