期刊
ORGANIC LETTERS
卷 12, 期 8, 页码 1732-1735出版社
AMER CHEMICAL SOC
DOI: 10.1021/ol100316k
关键词
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资金
- Ministry of Education, Culture, Sports, Science and Technology, Japan
- Grants-in-Aid for Scientific Research [22750044] Funding Source: KAKEN
An expeditious construction of a benzopyran skeleton via Lewis acid-catalyzed C-H functionalization was achieved. In this process, a [1,5] hydride shift and 6-endo cyclization successively occurred to give benzopyrans. The presence of substituents ortho to the alkoxy group significantly enhanced the reactivity, affording the desired compounds in excellent chemical yields with short reaction times.
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