Results 101 to 110 of about 32,089 (279)

A New Approach to Enantiocontrol and Enantioselectivity Amplification:  Chiral Relay in Diels−Alder Reactions

, 2016
A New Approach to Enantiocontrol and Enantioselectivity Amplification:  Chiral Relay in Diels−Alder ...
Mukund P. Sibi (1633159), Mei Liu (41760), Craig P. Jasperse (1633156), Lakshmanan Venkatraman (2509903)   +3 more
core   +1 more source

Chirality‐Induced Hydroxyapatite Manipulates Enantioselective Bone‐Implant Interactions Toward Ameliorative Osteoporotic Osseointegration

Advanced Science
Inspired by the fundamental attribute of chirality in nature, chiral‐engineered biomaterials now represent a groundbreaking frontier in biomedical fields.
Liang Yang, Jinzhou Du, Shengyang Jin, Shuyi Yang, Zhaowei Chen, Shiyang Yu, Cunyi Fan, Chao Zhou, Hongjiang Ruan   +8 more
doaj   +1 more source

Direct Access to Chiral Piperidines by Enantioselective HAT-Initiated C(sp³)─H Oxidation. [PDF]

Angew Chem Int Ed Engl
The direct desymmetrization of piperidines is achieved through manganese‐catalyzed enantioselective α‐C(sp3)─H oxidation with hydrogen peroxide, affording versatile chiral N,O‐acetals in good yields and with high enantio‐ and diastereoselectivity. These intermediates provide access to diverse functionalized piperidines with retention of chirality ...
Muthuramalingam S, Luis JM, Call A, Lefebvre Q, Sigman MS, Costas M.   +5 more
europepmc   +2 more sources

DFT-assisted rational design of salan ligands for highly enantioselective Zr-salan-catalyzed hydroxylation of cyclic <i>β</i>-keto esters. [PDF]

Smart Mol
Guided by DFT calculations, the design of novel C1‐symmetric salan ligands without the involvement of Suzuki coupling was achieved, and the preparation of α‐hydroxy‐β‐ketoesters in 99% yield and 99% ee was realized under low catalyst loading. Abstract In this work, a structurally simple, inexpensive, and readily accessible Zr–salan catalytic system was
Ma C, Tang K, Jiang Y, Zhu H, Wu Y, Xing Y, Wang Y, Liu Q, Du J, Meng Q.   +9 more
europepmc   +2 more sources

Properties of epoxide hydrolase from the yeast Rhodotorula glutinis [PDF]

, 2002
Epoxide hydrolases are ubiquitous enzymes that can be found in nearly all living organisms. Some of the enzymes play an important role in detoxifying xenobiotic and metabolic compounds.
Ariës-Kronenburg, N.A.E.
core  

Enantioselective Esterification of Ibuprofen under Microwave Irradiation

Molecules, 2013
Enantioselective esterification of ibuprofen has been successfully carried out in an organic solvent catalyzed by recombinant APE 1547 (a thermophilic esterase from the archaeon Aeropyrum pernix K1). Here we used microwave irradiation (MW) as the mode of
Dantong Zhao, Lei Wang, Hong Yue, Hong Zhang, Xuedong Fang, Ge Chen, Xuedun Niu, Zecheng Yang, Zhi Wang   +8 more
doaj   +1 more source

Recent Advances in Enantioselective Photochemical Reactions of Stabilized Diazo Compounds

Molecules, 2019
Diazo compounds have proven to be a useful class of carbenes or metal carbenoids sources under thermal, photochemical, or metal-catalyzed conditions, which can subsequently undergo a wide range of synthetically important transformations.
Ting-Bi Hua, Qing-Qing Yang, You-Quan Zou   +2 more
doaj   +1 more source

Improving the enantioselectivity of Bacillus subtilis LipA variants

, 2009
Tese mest. , Engenharia Biológica, 2009, Universidade do AlgarveThis thesis describes the application of lipase A (lipA) from Bacillus subtilis 168 which is of particular importance for the production of enantiomer of interest S-(+)- 1, 2- O ...
Inácio, Vera
core  

Enhancing enantioselectivity in chiral metal organic framework fluorescent sensors

Zn(ii) chiral MOFs with BINOL and d-camphoric acid exhibit exceptional enantioselectivity as chiral fluorescence ...
Siripanich, P, Hua, C, Ramkissoon, P, Lessio, M, Tay, HM, Smith, TA, Hua, L, Thoonen, S   +7 more
core   +1 more source

Enantioselective Evans-Tishchenko Reduction of b-Hydroxyketone Catalyzed by Lithium Binaphtholate

Molecules, 2011
Lithium diphenylbinaphtholate catalyzed the enantioselective Evans-Tishchenko reduction of achiral b-hydroxyketones to afford monoacyl-protected 1,3-diols with high stereoselectivities.
Makoto Nakajima, Tomonori Ichibakase, Masato Nakatsu   +2 more
doaj   +1 more source