Search

Your search keyword '"Chen, Yan"' showing total 112 results
112 results on '"Chen, Yan"'

1. ChemInform Abstract: Dihydrooxazine N-Oxide Intermediates as Resting States in Organocatalytic Kinetic Resolution of Functionalized Nitroallylic Amines with Aldehydes.

Author

Gurubrahamam, Ramani, Chen, Yan Ming, Huang, Wan‐Yun, Chan, Yu‐Te, Chang, Hsiang‐Kai, Tsai, Ming‐Kang, and Chen, Kwunmin

Subjects
*HYDROLYSIS, *AMINES, *ALDEHYDES
Abstract

Further hydrolysis of the title intermediates provides tetrahydropyridines in high yields and with high diastereo- and enantioselectivities. [ABSTRACT FROM AUTHOR]

Published
2016
Full Text
View/download PDF

4. ChemInform Abstract: An Air-Stable Na3SbS4 Superionic Conductor Prepared by a Rapid and Economic Synthetic Procedure.

Author

Wang, Hui, Chen, Yan, Hood, Zachary D., Sahu, Gayatri, Pandian, Amaresh Samuthira, Keum, Jong Kahk, An, Ke, and Liang, Chengdu

Subjects
*SUPERIONIC conductors, *SOLID state chemistry
Abstract

Phase pure Na3SbS4 as a solid electrolyte for all-solid-state Na batteries is produced by heating Na3SbS4·9H2O at 150 °C for 1 h under vacuum. [ABSTRACT FROM AUTHOR]

Published
2016
Full Text
View/download PDF

11. ChemInform Abstract: Intramolecular Addition of Triarylmethanes to Alkynes Promoted by KOtBu/DMF: A Synthetic Approach to Indene Derivatives.

Author

Chen, Yan‐yan, Chen, Zhen‐yu, Zhang, Niu‐niu, Chen, Jia‐hua, Zhang, Xue‐jing, and Yan, Ming

Subjects
*ADDITION reactions, *ALKYNE synthesis, *TRANSITION metal catalysts, *INDAN, *INTRAMOLECULAR forces, *ANNULATION
Abstract

A wide range of indene derivatives is prepared without the use of any transition-metal catalyst. [ABSTRACT FROM AUTHOR]

Published
2016
Full Text
View/download PDF

20. ChemInform Abstract: KOt-Bu/DMF Promoted Intramolecular Cyclization of 1,1′-Biphenyl Aldehydes and Ketones: An Efficient Synthesis of Phenanthrenes.

Author

Chen, Yan‐yan, Zhang, Niu‐niu, Ye, Lin‐miao, Chen, Jia‐hua, Sun, Xiang, Zhang, Xue‐jing, and Yan, Ming

Subjects
*PHENANTHRENE derivatives, *RING formation (Chemistry)
Abstract

An abstract of the article "KOt-Bu/DMF Promoted Intramolecular Cyclization of 1,1'-Biphenyl Aldehydes and Ketones: An Efficient Synthesis of Phenanthrenes" by Y.-Y. Chen and colleagues is presented.

Published
2015
Full Text
View/download PDF

23. ChemInform Abstract: A New Synthesis of Indoles via Intramolecular Cyclization of o-Alkynyl N,N-Dialkylanilines Promoted by KOt-Bu/DMSO.

Author

Chen, Yan‐yan, Chen, Jia‐hua, Zhang, Niu‐niu, Ye, Lin‐miao, Zhang, Xue‐Jing, and Yan, Ming

Subjects
*INDOLE derivatives, *INDOLE, *HETEROCYCLIC compounds synthesis, *RING formation (Chemistry), *ANILINE, *DIMETHYL sulfoxide, *POTASSIUM compounds
Abstract

It is suggested, that a DMSO radical generated in tBuOK/DMSO systems works as the crucial initiator for the title cyclization process. [ABSTRACT FROM AUTHOR]

Published
2015
Full Text
View/download PDF

24. ChemInform Abstract: Organocatalytic Desymmetrization of Cyclic meso-Anhydrides Through Enantioselective Alcoholysis with Functionalized Primary Nitroallylic Alcohols.

Author

Chen, Yan ming, Amireddy, Mamatha, and Chen, Kwunmin

Subjects
*ORGANOCATALYSIS, *ENANTIOSELECTIVE catalysis, *ANHYDRIDES
Abstract

An abstract of the article " Organocatalytic Desymmetrization of Cyclic meso-Anhydrides Through Enantioselective Alcoholysis with Functionalized Primary Nitroallylic Alcohols" by Y. M. Chen and colleagues is presented.

Published
2015
Full Text
View/download PDF

26. Catalyst-Free, Solvent-Promoted and Scalable Multicomponent Synthesis of 3-Aminoalkylated Indoles via a Mannich-Type Reaction.

Author

Cao, Jian‐Fei, Chen, Yan‐Li, Guan, Zhi, and He, Yan‐Hong

Subjects
*INDOLE, *HETEROCYCLIC compounds synthesis, *ALKYL compounds, *MANNICH reaction
Abstract

A graphical abstract of the article "Catalyst-Free, Solvent-Promoted and Scalable Multicomponent Synthesis of 3-Aminoalkylated Indoles via a Mannich-Type Reaction" is presented.

Published
2015
Full Text
View/download PDF

28. ChemInform Abstract: A Bifunctional Cr/Yb/Tm:Ca3Ga2Ge3O12 Phosphor with Near-Infrared Long-Lasting Phosphorescence and Upconversion Luminescence.

Author

Chen, Daqin, Chen, Yan, Lu, Hongwei, and Ji, Zhenguo

Subjects
*PHOSPHORUS, *LIGHT sources, *PHOTON emission, *LUMINOSITY, *QUANTUM transitions
Abstract

The title phosphor is synthesized by solid state reaction of a stoichiometric mixture of CaCO3, Ga2O3, GeO2, Cr2O3, Tm2O3, and Yb2O3 (900 °C for 2 h in air followed by calcination at 1180 °C for 6 h in air). [ABSTRACT FROM AUTHOR]

Published
2014
Full Text
View/download PDF

30. ChemInform Abstract: Novel Chemically Stable Ba3Ca1.18Nb1.82-xYx O9-δ Proton Conductor: Improved Proton Conductivity Through Tailored Cation Ordering.

Author

Wang, Siwei, Chen, Yan, Fang, Shumin, Zhang, Lingling, Tang, Ming, An, Ke, Brinkman, Kyle S., and Chen, Fanglin

Subjects
*BARIUM compounds, *SOLID state proton conductors, *PROTON conductivity, *CATIONS, *CALCINATION (Heat treatment), *STOICHIOMETRY, *MIXTURES, *CHEMICAL stability
Abstract

Ba3Ca1.18Nb1.82-xYx O9-δ (0 ≤ x ≤ 0.5) are prepared by repeated calcination of stoichiometric mixtures of BaCO3, CaCO3, Nb2O5, and Y2O3 in air (1200 °C, 5 h) followed by sintering (1550 °C, 5 h). [ABSTRACT FROM AUTHOR]

Published
2014
Full Text
View/download PDF

33. ChemInform Abstract: Efficient Cyclization of Tertiary Amines and Alkenes Promoted by KOt-Bu-DMF.

Author

Chen, Yan‐yan, Zhang, Xue‐jing, Yuan, Hui‐min, Wei, Wen‐tao, and Yan, Ming

Subjects
*RING formation (Chemistry), *AMINES, *ALKENES, *POTASSIUM compounds, *DIMETHYLFORMAMIDE, *QUINOLINE derivatives, *INDOLINE
Abstract

The 6-endo-cyclization of substrates (VI) and (VIII) gives rise to corresponding tetrahydroquinoline derivatives, whilst the reaction of substrate (XI) leads to indoline (XII) as a result of a 5-exo-cyclization. [ABSTRACT FROM AUTHOR]

Published
2014
Full Text
View/download PDF

36. ChemInform Abstract: Desymmetrization and Switching of Stereoselectivity in Direct Organocatalytic Michael Addition of Ketones to 1,1-Bis(phenylsulfonyl)ethylene.

Author

Chen, Yan ming, Lee, Pei‐Hsun, Lin, Jun, and Chen, Lwunmin

Subjects
*KETONES, *ORGANIC compounds, *KETOACIDOSIS, *OXO compounds, *CHEMICAL equations
Abstract

Camphor-derived pyrrolidine catalyst bearing a thiourea-group and cinchonidine-derived catalyst are used to prepare the enantiomeric ketosulfones with comparable yields and stereoselectivities. [ABSTRACT FROM AUTHOR]

Published
2013
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results