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Your search keyword '"Ji, Ding‐Wei"' showing total 5 results
Start Over Author "Ji, Ding‐Wei" Publisher royal society of chemistry
5 results on '"Ji, Ding‐Wei"'

2. Rhodium-catalyzed regio- and enantioselective allylic alkylation of pyrazol-5-ones with alkynes.

Author

Ji, Ding-Wei, Yang, Fan, Chen, Bing-Zhi, Min, Xiang-Ting, Kuai, Chang-Sheng, Hu, Yan-Cheng, and Chen, Qing-An

Subjects
*ALLYLIC alkylation, *RHODIUM catalysts, *CATALYSTS, *ALKYNES, *WASTE products, *HYDRIDES
Abstract

A rhodium-catalyzed asymmetric allylic alkylation of pyrazol-5-ones with internal alkynes is illustrated. In the presence of a chiral rhodium-hydride catalyst, functionalized heterocyclic products bearing an all-carbon quaternary stereogenic center were obtained in high yields with satisfactory enantioselectivities. This protocol also features good regiocontrol and a high atom economy without stoichiometric by-product formation. [ABSTRACT FROM AUTHOR]

Published
2020
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3. Nickel-catalyzed allyl–allyl coupling reactions between 1,3-dienes and allylboronates.

Author

Ji, Ding-Wei, He, Gu-Cheng, Zhang, Wei-Song, Zhao, Chao-Yang, Hu, Yan-Cheng, and Chen, Qing-An

Subjects
*METAL catalysts, *FUNCTIONAL groups, *CATALYSIS, *NICKEL
Abstract

A regiospecific allyl–allyl coupling reaction between 1,3-dienes and allylboronates has been demonstrated under nickel catalysis. Salient features of this method include the earth-abundant metal catalyst, excellent regioselectivity and good functional group tolerance. Notably, even congested allyl substrates can also be applied to this protocol, thus allowing for the rapid preparation of a series of valuable 1,5-dienes. [ABSTRACT FROM AUTHOR]

Published
2020
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