Zobrazeno 1 - 10
of 73
pro vyhledávání: '"Qi-Xiang Guo"'
Publikováno v:
Advanced Science, Vol 11, Iss 28, Pp n/a-n/a (2024)
Abstract Axially chiral thioethers and sulfoxides emerge as two pivotal classes of ligands and organocatalysts, which have remarkable features in the stereoinduction of various asymmetric transformations. However, the lack of easy methods to access s
Externí odkaz:
https://doaj.org/article/e850232796e0414189ec573b125e4218
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-9 (2022)
The combination of transition metal catalysis and organocatalysis can afford both good reactivity and selectivity. Here, the authors present an α − propargylation of N-unprotected amino acid esters with propargylic alcohol derivatives via dual nic
Externí odkaz:
https://doaj.org/article/7af733df5f2749e086ca0d731addf1bf
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-11 (2022)
The catalytic asymmetric benzylations of prochiral nucleophiles are very limited. Here, the authors disclose an asymmetric α−benzylation of N-unprotected amino acids with benzyl alcohol derivatives by a chiral aldehyde-involved catalytic system.
Externí odkaz:
https://doaj.org/article/7c065e82cf004c54b2f42c01db8f0970
Autor:
Wei Wen, Ming-Jing Luo, Yi Yuan, Jian-Hua Liu, Zhu-Lian Wu, Tian Cai, Zhao-Wei Wu, Qin Ouyang, Qi-Xiang Guo
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-11 (2020)
Chiral aldehyde catalysis is a useful strategy in the catalytic asymmetric α-functionalization of amino methyl compounds but these reaction types are limited. Here, the authors report two chiral aldehyde-catalysed diastereodivergent reactions, namel
Externí odkaz:
https://doaj.org/article/a44443687aec4a61b99cc00906fbf20a
Publikováno v:
Molecules, Vol 25, Iss 3, p 648 (2020)
A highly efficient quinine-derived primary-amine-catalyzed asymmetric aldol addition of hydroxyacetone to arylglyoxals is described. Structurally diverse anti-2,3-dihydroxy-1,4-diones were generated in high yields, with good diastereoselectivities an
Externí odkaz:
https://doaj.org/article/ae5ab1fb6c774b008aa8174d2e0d0aa6
Autor:
Hao Zhang, Wei Wen, Yu-Yang Wang, Ze-Xi Lu, Jin-Long Liu, Zhu-Lian Wu, Tian Cai, Qi-Xiang Guo
Publikováno v:
Chemical Science; 8/28/2024, Vol. 15 Issue 32, p12983-12988, 6p
Publikováno v:
Organic Letters. 25:3163-3167
Autor:
Jian-Hua Liu, Qing Zhou, Yao Lin, Zhu-Lian Wu, Tian Cai, Wei Wen, Yan-Min Huang, Qi-Xiang Guo
Publikováno v:
ACS Catalysis. 13:6013-6022
Autor:
Hao-Ran Shen, Chao-Xing Li, Xin Jiang, Yao Lin, Jian-Hua Liu, Fang Zhu, Zhu-Lian Wu, Tian Cai, Wei Wen, Rong-Xing He, Qi-Xiang Guo
Publikováno v:
Chemical Science. 14:5665-5671
The direct asymmetric α-arylation, allylation and benzylation of NH2 unprotected amino acid esters with aryl halides, allyl and benzyl chlorides are respectively achieved by chiral aldehyde catalysis.
Autor:
Qi-Xiang Guo, Wei Wen
Publikováno v:
Synthesis. 55:719-732
Asymmetric functionalization of amines and their derivatives is of great significance in synthetic chemistry and is widely used in the preparation of natural products and pharmaceuticals. In recent years, chiral aldehyde catalysis has emerged as a we