期刊
JOURNAL OF ORGANIC CHEMISTRY
卷 84, 期 17, 页码 10832-10842出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.joc.9b01403
关键词
-
资金
- Ministry of Science and Technology (MOST) of the Republic of China [MOST 102-2113-M-194-001-MY3]
Various benzaldehyde tethers with a cyclic enone were prepared from commercially available 2-hydroxybenzaldehydes via a three-step sequence involving triflate formation, Sonogashira cross-coupling, and regioselective hydrogenation. These substrates were then exposed to an N-heterocyclic carbene, whereupon intramolecular Stetter reaction proceeded smoothly to give various spirofused tricyclic 1,4-diketones in 30-87% yields. Furaldehyde and nicotinaldehyde derivatives also participated in the reaction under the Stetter conditions.
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