Results 331 to 340 of about 3,272,143 (363)

Enantioselective Total Synthesis of Batzelladine A [PDF]

Angewandte Chemie, 2004
AbstractFor Abstract see ChemInform Abstract in Full Text.
Aya Tanatani, Yuichi Hashimoto, Kazuo Nagasawa, Koji Shirai, Jun Shimokawa   +4 more
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Asymmetric Phosphoric Acid-Catalyzed Atroposelective Three-Component Cascade Reaction: Highly Enantioselective Synthesis of Axially Chiral N-Arylindoles.

Angewandte Chemie, 2019
An efficient organocatalytic atroposelective three-component cascade reaction of 2,3-diketoesters, aromatic amines and 1,3-cyclohexanediones has been developed for the highly enantioselective synthesis of axially chiral N-arylindoles. The feature of this
Lei Wang, J. Zhong, Xufeng Lin
semanticscholar   +1 more source

Enantioselective Synthesis of (−)-Pentalenene

Organic Letters, 2007
A short, enantioselective synthesis of (-)-pentalenene is described. Catalytic enantioselective cyclopropenation with (R,R)-Rh2(OAc)(DPTI)3 was used to set the absolute stereochemistry, and an intramolecular Pauson-Khand reaction of the resulting cyclopropenyne was used to establish the quaternary center.
Mahesh K. Pallerla, Joseph M. Fox
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Enantioselective Synthesis of Biaryl Atropisomers by Pd-Catalyzed C-H Olefination using Chiral Spiro Phosphoric Acid Ligands.

Angewandte Chemie, 2019
The discovery of proper ligands to simultaneously modulate the reactivity and effectively control the stereoselectivity is a central topic in the field of enantioselective C-H activation.
Jun Luo, Tao Zhang, Lei Wang, Gang Liao, Qi-Jun Yao, Yong-Jie Wu, Bei‐Bei Zhan, Y. Lan, Xufeng Lin, Bingfeng Shi   +9 more
semanticscholar   +1 more source

Enantioselective Synthesis of Silanol

Journal of the American Chemical Society, 2008
An enantioselective nucleophilic substitution reaction of achiral dialkoxysilane has been developed. The reaction proceeds with efficient stereocontrol on the silicon chirality center to give the enantioenriched silyl ether, which can be converted to the silanol without loss of enantiopurity.
Junko Takada, Kazunobu Igawa, Katsuhiko Tomooka, Tomohiro Shimono   +3 more
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Enantioselective Synthesis of (−)-Dysiherbaine

Organic Letters, 2015
Dysiherbaine, a natural product isolated from the Marine sponge Dysidea herbacea, has been shown to be a selective agonist of non-NMDA type glutamate receptors, kainate receptors. An enantioselective synthesis of dysiherbaine is reported. Metathesis of the diene followed by conversion of the resulting alkene to the amino alcohol and addition of the ...
Joon Hyung Cho, Chang Won Kang, Scott R. Gilbertson, Ha Do   +3 more
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Enantioselective Synthesis of C-N Axially Chiral N-Aryloxindoles by Asymmetric Rhodium-Catalyzed Dual C-H Activation.

Angewandte Chemie, 2019
The first enantioselective Satoh-Miura-type reaction is reported. A variety of C-N axially chiral N-aryloxindoles have been enantioselectively synthesized by an asymmetric rhodium-catalyzed dual C-H activation reaction of N-aryloxindoles and alkynes ...
Honghe Li, Xiaoqian Yan, Jitan Zhang, Weicong Guo, Jijun Jiang, Jun Wang   +5 more
semanticscholar   +1 more source

Enantioselective Synthesis of Multisubstituted Allenes by Cooperative Cu/Pd-Catalyzed 1,4-Arylboration of 1,3-Enynes.

Angewandte Chemie, 2019
A cooperative Cu/Pd-catalyzed enantioselective synthesis of multisubstituted allenes is established. By employing chiral sulfoxide phosphine (SOP)/Cu and PdCl2 (dppf) complexes as catalysts, the 1,4-arylboration of 1,3-enynes provides an efficient ...
Yangzhen Liao, Xue-Song Yin, Xihong Wang, Wang Yu, Dong-mei Fang, Lian-rui Hu, Min Wang, J. Liao   +7 more
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An Enantioselective Synthesis of Tarchonanthuslactone

The Journal of Organic Chemistry, 2002
An enantioselective synthesis of tarchonanthuslactone has been achieved in eight steps from ethyl sorbate. The asymmetry of the route was introduced via a Sharpless asymmetric dihydroxylation allowing access to either enantiomer. The synthesis utilizes a palladium-catalyzed reduction and a diastereoselective base-catalyzed acetal formation as the key ...
Sarah D Garaas, George A. O'Doherty, Thomas J. Hunter   +2 more
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Concurrent Asymmetric Reactions Combining Photocatalysis and Enzyme Catalysis: Direct Enantioselective Synthesis of 2,2-Disubstituted Indol-3-ones from 2-Arylindoles.

Angewandte Chemie, 2018
The combination of photoredox and enzymatic catalysis for the direct asymmetric one-pot synthesis of 2,2-disubstituted indol-3-ones from 2-arylindoles through concurrent oxidization and alkylation reactions is described.
Xuan Ding, Chun-Lin Dong, Zhi Guan, Yan‐Hong He   +3 more
semanticscholar   +1 more source