期刊
ORGANIC LETTERS
卷 12, 期 14, 页码 3266-3268出版社
AMER CHEMICAL SOC
DOI: 10.1021/ol1012313
关键词
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资金
- Ministry of Education, Culture, Sports, Science, and Technology, Japan
- Grants-in-Aid for Scientific Research [21689001] Funding Source: KAKEN
N-p-Toluenesulfonyl (Ts) aldimines reacted with 3-ethoxycyclobutanones by catalysis of titanium(IV) chloride to afford 2,3-di- or 2,3,3-trisubstituted N-Ts-2,3-dihydro-4-pyridones. Synthesis of (+/-)-bremazocine was efficiently accomplished by using this method.
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