期刊
ORGANIC LETTERS
卷 13, 期 4, 页码 620-623出版社
AMER CHEMICAL SOC
DOI: 10.1021/ol102858u
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-
资金
- Japan Society for the Promotion of Science (JSPS) [22550044]
- Grants-in-Aid for Scientific Research [22550044] Funding Source: KAKEN
Complexes of copper with 1,4-diphenyl, 1,4-dimesityl, and 1-(2,6-diisopropylphenyl)-4-(3,5-xylyl)-1,2,3-triazol-5-ylidene (abnormal NHC = N-heterocyclic carbene) were prepared by consecutive treatment of the corresponding azolium salts with silver oxide and copper chloride. The new CuCl(aNHC) complexes efficiently catalyzed click reactions of azides with alkynes to give 1,4-substituted 1,2,3-triazoles in excellent yields at room temperature with short reaction times. CuCl(TPh) was particularly effective for the reaction between sterically hindered azides and alkynes.
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