期刊
ORGANIC LETTERS
卷 11, 期 11, 页码 2233-2236出版社
AMER CHEMICAL SOC
DOI: 10.1021/ol900689m
关键词
-
资金
- Takeda Science Foundation
- Naito Foundation
- Nagase Science and Technology Foundation
- Ministry of Education, Culture, Sports, Science and Technology (MEXT) of Japan
The regioselective synthesis of chafurosides A (1) and B (2) from the same methyl ketone 5 was accomplished using a novel protecting group strategy. Both flavone rings were constructed from beta-diketone intermediate 4, which was readily obtained by condensation of an acyl donor and ketone 5. Construction of the dihydrofuran ring was achieved via an intramolecular Mitsunobu reaction.
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