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Your search keyword '"Cao, Shixuan"' showing total 2 results
Start Over Author "Cao, Shixuan" Topic maleimides
2 results on '"Cao, Shixuan"'

1. Phosphine-catalyzed [4+1] annulation of 1,3-(aza)dienes with maleimides: highly efficient construction of azaspiro[4.4]nonenes.

Author

Yang M, Wang T, Cao S, and He Z

Subjects
Catalysis, Cycloaddition Reaction, Electrons, Spiro Compounds chemical synthesis, Maleimides chemistry, Phosphines chemistry, Spiro Compounds chemistry
Abstract

Phosphine-catalyzed [4+1] annulation of electron-deficient 1,3-dienes or 1,3-azadienes with maleimides has been successfully developed under very mild conditions, providing a convenient and highly efficient method for constructing 2-azaspiro[4.4]nonenes and 1,7-diazaspiro[4.4]nonenes. This reaction represents the first example of [4+1] cyclization between electron-deficient 4π-conjugated systems and non-allylic phosphorus ylides.

Published
2014
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2. ChemInform Abstract: Phosphine-Catalyzed [4 + 1] Annulation of 1,3-(Aza)dienes with Maleimides: Highly Efficient Construction of Azaspiro[4.4]nonenes.

Author

Yang, Mei, Wang, Tianyi, Cao, Shixuan, and He, Zhengjie

Subjects
*PHOSPHINE, *PHOSPHORUS compounds, *ANNULATION, *MALEIMIDES, *DIOLEFINS
Abstract

Compounds (VII) are isolated as diastereomeric mixtures due to hindered rotation of the aryl groups caused by steric hindrance of the ortho-substituents. [ABSTRACT FROM AUTHOR]

Published
2015
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