Search

Your search keyword '"Zhou Zhao"' showing total 22 results
Start Over Author "Zhou Zhao" Journal cheminform
22 results on '"Zhou Zhao"'

1. ChemInform Abstract: RhII-Catalyzed [3 + 2] Cycloaddition of 2H-Azirines with N-Sulfonyl-1,2,3-triazoles

Author

Yun-Zhou Zhao, Min Shi, Xiang-Ying Tang, and Hai-Bin Yang

Subjects
Sulfonyl, chemistry.chemical_classification, chemistry.chemical_compound, chemistry, chemistry.chemical_element, General Medicine, Medicinal chemistry, Carbene, Pyrrole derivatives, Cycloaddition, Catalysis, Rhodium
Abstract

The title reaction affords a series of fully functionalized pyrrole derivatives (III) and (V) via rhodium azavinyl carbene intermediates.

Published
2015

2. ChemInform Abstract: Asymmetric Synthesis of Bioxindole-Substituted Hexahydrofuro[2,3-b]furans via Hydroquinine Anthraquinone-1,4-diyl Diether-Catalyzed Domino Annulation of Acylidenoxindoles/Isatins, Acylidenoxindoles and Allenoates

Author

Yun-Zhou Zhao, Rui Sang, Min Shi, Yin Wei, and Hai-Bin Yang

Subjects
Steric effects, chemistry.chemical_compound, Annulation, Chemistry, Organocatalysis, Enantioselective synthesis, Stacking, General Medicine, Medicinal chemistry, Anthraquinone, Domino, Catalysis
Abstract

Hydroquinine anthraquinone-1,4-diyl diether [(DHQ)(2)AQN]-catalyzed unprecedented asymmetric domino annulation reactions of acylidenoxindoles/isatins, acylidenoxindoles and allenoates are disclosed in this communication, providing a facile access to hexahydrofuro[2,3-b]furans containing four contiguous chiral centers in good to excellent yields along with good to excellent ee values and moderate to good dr values. Based on theoretical investigations, a concerted [3+2] ring-closure process was proposed, in which steric hindrance and pi-pi stacking interaction between catalyst and substrate subtly co-control the diastereoselectivity of the reaction.

Published
2015

3. ChemInform Abstract: (DHQ)2AQN-Catalyzed Asymmetric Substitution of Isatin-Derived Hydrazones with O-Boc-Protected Morita-Baylis-Hillman Adducts: A Strategy for Synthesizing Enantioenriched Azo Compounds Incorporating an Oxindole Scaffold

Author

Yun-Zhou Zhao, Hai-Bin Yang, Rui Sang, and Min Shi

Subjects
chemistry.chemical_compound, chemistry, Yield (chemistry), Isatin, Organic chemistry, Oxindole, General Medicine, Catalysis, Adduct
Abstract

The first example for the preparation of enantioenriched azo compounds from hydrazones and Morita–Baylis–Hillman adducts has been developed, affording azo compounds incorporating an oxindole scaffold in up to 91% yield along with a 93% ee value under the catalysis of (DHQ)2AQN.

Published
2014

4. ChemInform Abstract: A Novel Multicomponent Reaction Involving Isoquinoline, Allenoate and Activated Ketone

Author

Hai-Bin Yang, Min Shi, Yun-Zhou Zhao, Rui Sang, and Xiang-Yin Tang

Subjects
chemistry.chemical_classification, chemistry.chemical_compound, Ketone, chemistry, Component (thermodynamics), Organic chemistry, General Medicine, Isoquinoline, Cycloaddition
Abstract

This novel three component reaction gives an easy access to isoquinoline derivatives via a 1,4-dipolar cycloaddition reaction.

Published
2014

Catalog

Books, media, physical & digital resources
See catalog results