期刊
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
卷 134, 期 35, 页码 14314-14317出版社
AMER CHEMICAL SOC
DOI: 10.1021/ja3063474
关键词
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资金
- Ministry of Education, Culture, Sports, Science and Technology of Japan [21225004, 24750047]
- RIKEN
- Grants-in-Aid for Scientific Research [24750047, 21225004] Funding Source: KAKEN
By the use of an N-heterocyclic carbene copper(I) complex as a catalyst, the boracarboxylation of various alkynes (e.g., diaryl alkynes, aryl/alkyl alkynes, and phenylacetylene) with a diborane compound and carbon dioxide has been achieved for the first time, affording the alpha,beta-unsaturated beta-boralactone derivatives regio- and stereoselectively via a borylcupration/carboxylation cascade. Some important reaction intermediates were isolated and structurally characterized to clarify the reaction mechanism.
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