Results 91 to 100 of about 85,052 (233)

Asymmetric dearomatization/cyclization enables access to polycyclic chemotypes [PDF]

, 2016
Enantioenriched, polycyclic compounds were obtained from a simple acylphloroglucinol scaffold. Highly enantioselective dearomatization was accomplished using a Trost ligand-palladium(0) complex.
Boyce, Burke, Butts, Choi, Ciochina, George, Hayes, Horeischi, Hurtley, Karkas, Keith, Lu, Mitasev, Richard, Schreiber, Simpkins, Singh, Sparling, Spessard, Trabocchi, Trost, Trost, Trost, Trost, Uwamori, Weedon, Xuan, Zhang, Zhang, Zhu, Zhuo   +30 more
core   +1 more source

o‐Quinodimethane Atropisomers: Enantioselective Synthesis and Stereospecific Transformation [PDF]

, 2022
Jianyang Dong, Andreas Ostertag, Christof Sparr   +2 more
openalex   +1 more source

Asymmetric synthesis of chiral heterobenzylic amines via visible-light-induced enantioselective C(sp3)-H alkylation

Green Synthesis and Catalysis
The chiral heterobenzylic amines, such as α-alkyl substituted chiral oxadiazole methylamine skeletons are widely present in pesticides and pharmaceuticals, due to their unique biological activities.
Yumei Huo, Beibei Chen, Xiaoyu Ren, Chao Wang, Rupeng Qi, Zhaoqing Xu   +5 more
doaj   +1 more source

Enantioselective Total Synthesis of (+)-Cassiol [PDF]

, 2009
An enantioselective total synthesis of (+)-cassiol is reported. The complex derived from Pd-2(pmdba)(3) and enantiopure t-BuPHOX ligand catalyzes enantioconvergent decarboxylative alkylation to generate the quaternary carbon stereocenter at an early ...
Mohr, Justin T., Petrova, Krastina V., Stoltz, Brian M.   +2 more
core   +2 more sources

Photocatalytic Enantioselective Radical Cascade Multicomponent Minisci Reaction of β‐Carbolines Using Diazo Compounds as Radical Precursors

Advanced Science
Here, a photocatalytic asymmetric multicomponent cascade Minisci reaction of β‐carbolines with enamides and diazo compounds is reported, enabling an effective enantioselective radical C─H functionalization of β‐carbolines with high yields and ...
Yi‐Jie Gu, Mu‐Peng Luo, Hua Yuan, Guo‐Kai Liu, Shou‐Guo Wang   +4 more
doaj   +1 more source

Organocatalytic stereodivergent synthesis of β,β-disubstituted-α-aminoacids [PDF]

, 2017
In this work, we present an organocatalytic stereodivergent synthesis of β,β-disubstituted-α-aminoacids using arylidene azlactones as starting materials.
Martinelli, Ada
core  

Cation-induced enhanced enantioselective recognition by a chiral covalent-organic framework

Communications Chemistry
Chirality plays a pivotal role in the properties of biologically active molecules, with enantiomers exhibiting divergent pharmacological and toxicological profiles.
Zongsu Han, Tiankai Sun, Peng Cheng, Wei Shi   +3 more
doaj   +1 more source

Nickel(II)/BINOL-catalyzed enantioselective C–H activation via desymmetrization and kinetic resolution

Nature Communications
The field of nickel catalysis has witnessed remarkable growth in recent years. However, the use of nickel catalysts in enantioselective C–H activation remains a daunting challenge because of their variable oxidation states, intricate coordination ...
Qi-Jun Yao, Fan-Rui Huang, Jia-Hao Chen, Bing-Feng Shi   +3 more
doaj   +1 more source

Enantioselective synthesis of aziridines using asymmetric transfer hydrogenation as a precursor for chiral derivatives used as bonding agent for rocket solid propellants

Química Nova, 2002
A rapid, expedient and enantioselective method for the synthesis of beta-hydroxy amines and monosubstituted aziridines in up to 99% e.e., via asymmetric transfer hydrogenation of a-amino ketones and cyclisation through treatment with tosyl chloride and ...
Aparecida M. Kawamoto, Martin Wills
doaj   +1 more source

Transferring Axial Molecular Chirality Through a Sequence of On-Surface Reactions

, 2020
Fine management of chiral processes on solid surfaces has progressed over the years, yet still faces the need for the controlled and selective production of advanced chiral materials.
Berdonces-Layunta, Alejandro, Castro-Esteban, Jesús, Colazzo, Luciano, de Oteyza, Dimas G., Lawrence, James, Merino-Díez, Néstor, Mohammed, Mohammed S. G., Pascual, J. Ignacio, Peña, Diego   +8 more
core   +1 more source