期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 55, 期 23, 页码 6753-6757出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201602155
关键词
alkynes; allenes; cyclization; dimerization; rhodium
资金
- ACT-C from Japan Science and Technology Agency (JST, Japan)
- Ministry of Education, Culture, Sports, Science and Technology (MEXT, Japan) [25105714]
- Grants-in-Aid for Scientific Research [15H06201] Funding Source: KAKEN
It has been established that a cationic rhodium(I)/binap complex catalyzes the cross-cyclotrimerization of two molecules of a monosubstituted allene with one molecule of a functionalized alkyne to give 3,6-dialkylidenecyclohex-1-enes. In contrast, the reactions involving di- or trisubstituted allenes and/or unfunctionalized alkynes afforded cross-dimerization products, substituted dendralenes, through beta-hydrogen elimination from the corresponding rhodacycles.
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