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Your search keyword '"Hao, Xiaoyu"' showing total 6 results
Start Over Author "Hao, Xiaoyu" Journal cheminform
6 results on '"Hao, Xiaoyu"'

1. ChemInform Abstract: Chiral N,N′-Dioxide-Scandium(III)-Catalyzed Asymmetric Epoxidation of 2-Arylidene-1,3-diketones with Hydrogen Peroxide.

Author

Chu, Yangyang, Hao, Xiaoyu, Lin, Lili, Chen, Weiliang, Li, Wei, Tan, Fei, Liu, Xiaohua, and Feng, Xiaoming

Subjects
*KETONES, *ARYL group, *SCANDIUM catalysts, *HYDROGEN peroxide, *CHIRALITY, *EPOXIDATION
Abstract

The reaction can be performed on a gram-scale but it results in lower yields [50% (97% e.e.) of (IIa)]. [ABSTRACT FROM AUTHOR]

Published
2014
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2. ChemInform Abstract: Chiral Lewis Acid Catalyzed Asymmetric Cycloadditions of Disubstituted Ketenes for the Synthesis of β-Lactones and δ-Lactones.

Author

Hao, Xiaoyu, Liu, Xiaohua, Li, Wei, Tan, Fei, Chu, Yangyang, Zhao, Xiaohu, Lin, Lili, and Feng, Xiaoming

Subjects
*LACTONES, *ORGANIC synthesis, *LEWIS acids, *CHIRALITY, *RING formation (Chemistry), *KETENES, *ASYMMETRIC synthesis
Abstract

All reaction products are isolated with 98% diastereoisomeric excess. [ABSTRACT FROM AUTHOR]

Published
2014
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3. ChemInform Abstract: Catalytic Asymmetric Intramolecular Homologation of Ketones with α-Diazoesters: Synthesis of Cyclic α-Aryl/Alkyl β-Ketoesters.

Author

Li, Wei, Tan, Fei, Hao, Xiaoyu, Wang, Gang, Tang, Yu, Liu, Xiaohua, Lin, Lili, and Feng, Xiaoming

Subjects
*KETONES, *ESTERS, *CATALYSIS
Abstract

An abstract of the article "Catalytic Asymmetric Intramolecular Homologation of Ketones with α-Diazoesters: Synthesis of Cyclic α-Aryl/Alkyl β-Ketoesters" by W. Li is presented.

Published
2015
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5. ChemInform Abstract: Enantioselective Construction of Vicinal Tetrasubstituted Stereocenters by the Mannich Reaction of Silyl Ketene Imines with Isatin-Derived Ketimines.

Author

Zhao, Jiannan, Fang, Bing, Luo, Weiwei, Hao, Xiaoyu, Liu, Xiaohua, Lin, Lili, and Feng, Xiaoming

Subjects
*IMINES, *ISATIN, *ENANTIOSELECTIVE catalysis, *STEREOCHEMISTRY, *MANNICH reaction, *CHIRALITY
Abstract

A highly enantioselective Mannich reaction of silyl ketene imines with isatin-derived ketimines is realized by using a chiral N,N′-dioxide/ZnII catalyst. [ABSTRACT FROM AUTHOR]

Published
2015
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6. ChemInform Abstract: Catalytic Asymmetric Homologation of α-Ketoesters with α-Diazoesters: Synthesis of Succinate Derivatives with Chiral Quaternary Centers.

Author

Li, Wei, Liu, Xiaohua, Tan, Fei, Hao, Xiaoyu, Zheng, Jianfeng, Lin, Lili, and Feng, Xiaoming

Subjects
*CHEMICAL equations, *ESTER derivatives, *SUCCINATES
Abstract

The article offers chemical equations from the article "Catalytic Asymmetric Homologation of α-Ketoesters with α-Diazoesters: Synthesis of Succinate Derivatives with Chiral Quaternary Centers" by W. Li and others in a 2013 issue of the journal "Angewandte Chemie International Edition 52."

Published
2014
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