Results 71 to 80 of about 12,531 (256)

Scalable ω‐Substituted α‐Olefins via Living Chain Transfer Telomerization: A Platform for Next Generation Polyolefins

Angewandte Chemie International Edition, EarlyView.
A highly versatile and general strategy is presented for the scalable production of practical quantities of ω‐substituted α‐olefins using tris(ω‐substituted alkyl)aluminum telogens that are readily available through a “green” synthesis from commodity triisobutylaluminum and ethene as the taxogen. These new α‐olefins can be designed and used as monomers
Lauren G. Logue, Cole M. Burrows, Vince J. Wedekind, Hyunku C. Kim Jr., Lawrence R. Sita   +4 more
wiley   +1 more source

A metal-DNA biohybrid as enantioselective artificial photoDNAzyme

Nature Communications
Visible light photocatalysis, which exploits the reactivity of molecules at their excited state, has triggered a paradigm shift in organic synthesis by enabling some very unique chemical transformations.
Zachary Pastorel, Juliette Zanzi, Mathieu Noël, Alessio Bartocci, Stellios Arseniyadis, Elise Dumont, Yves Canac, Olivier Baslé, Michael Smietana   +8 more
doaj   +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

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

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

Atomically precise metal cluster enzymes for pathological tissue regeneration

BMEMat, EarlyView.
Schematic illustration of atomically precise metal cluster enzymes (MCEs) for pathological tissue regeneration. Atomically precise MCEs can modulate biological processes, such as attenuation of inflammatory responses, eradication of bacterial pathogens, regulation of angiogenesis, and promotion of cell development.
Ziqiang Xiong, Zhifeng Shi, Mengqing Li, Jien Han, Haoyan Chen, Maofei Ran, Shaojian Zhong, Limin Ma, Chengyun Ning, Youzhun Fan, Zhenghua Tang, Peng Yu   +11 more
wiley   +1 more source

Optimization of the asymmetric synthesis of (S)-1-phenylethanol using Ispir bean as whole-cell biocatalyst

Green Processing and Synthesis, 2019
In this study, enantiomerically pure (S)-1-phenylethanol was produced via asymmetric bioreduction of acetophenone. Ispir bean (Phaseolus vulgaris) was used as an alcohol dehydrogenase (ADH) source since whole cells are cheaper than isolated enzymes ...
Atak Gunay Baydar, Bayraktar Emine, Mehmetoglu Ülkü   +2 more
doaj   +1 more source

The Asymmetric Self‐Replicative Alkylation of N‐Arylaldimines Using Organolithium Reagents

Chemistry – A European Journal, EarlyView.
Here, we report a new asymmetric autoinductive reaction; the addition of nBuLi to N‐arylaldimines to form chiral lithium amides. The reaction proceeds with full conversion and complete transfer of chirality, representing the first example of an asymmetric autoinductive reaction with organolithium reagents.
Anka Hagelschuer, Paco Visser, Ben L. Feringa   +2 more
wiley   +1 more source

Density Functional Theory Study on Mechanism and Selectivity of Nickel-Catalyzed Hydroboration of Vinylarenes

Organics
Density functional theory calculations were performed to elucidate the mechanistic details and origins of the selectivity of the nickel-catalyzed hydroboration of vinylarenes using B2pin2/MeOH.
Jingwei Wu, Yongzhu Zhou, Lei Zhang, Jie Zhang, Pei Song, Xiaoling Wang, Cuihong Wang   +6 more
doaj   +1 more source