Processes to separate enantiomers

H Lorenz, A Seidel‐Morgenstern - … Chemie International Edition, 2014 - Wiley Online Library
The provision of pure enantiomers is of increasing importance not only for the
pharmaceutical industry but also for agrochemistry and biotechnology. In general, there are …

Artificial molecular rotors

GS Kottas, LI Clarke, D Horinek, J Michl - Chemical Reviews, 2005 - ACS Publications
To many, periodic mechanical conformational motion of molecules is mesmerizing to a
degree that is difficult to explain rationally: It is almost as hard to stop watching an image of …

An intramolecular coupling approach to alkyl bioisosteres for the synthesis of multisubstituted bicycloalkyl boronates

Y Yang, J Tsien, JME Hughes, BK Peters… - Nature …, 2021 - nature.com
Abstract Bicyclic hydrocarbons, and bicyclo [1.1. 1] pentanes (BCPs) in particular, are
playing an emerging role as saturated bioisosteres in pharmaceutical, agrochemical and …

Catalytic α-deracemization of ketones enabled by photoredox deprotonation and enantioselective protonation

C Zhang, AZ Gao, X Nie, CX Ye, SI Ivlev… - Journal of the …, 2021 - ACS Publications
This study reports the catalytic deracemization of ketones bearing stereocenters in the α-
position in a single reaction via deprotonation, followed by enantioselective protonation. The …

Late-stage C–H alkylation of heterocycles and 1, 4-quinones via oxidative homolysis of 1, 4-dihydropyridines

Á Gutiérrez-Bonet, C Remeur, JK Matsui… - Journal of the …, 2017 - ACS Publications
Under oxidative conditions, 1, 4-dihydropyridines (DHPs) undergo a homolytic cleavage,
forming exclusively a Csp3-centered radical that can engage in the C–H alkylation of …

Enzyme-mediated oxidations for the chemist

F Hollmann, IWCE Arends, K Buehler, A Schallmey… - Green …, 2011 - pubs.rsc.org
Biocatalysis is an enabling technology adding to organic oxidation chemistry. Especially the
high selectivity of enzymatic oxidation coevally operating under mild conditions and not …

[图书][B] Introduction to green chemistry

J Andraos, AS Matlack - 2022 - taylorfrancis.com
Interest in green chemistry and clean processes has grown so much in recent years that
topics such as fluorous biphasic catalysis, metal organic frameworks, and process …

[图书][B] Chiroptical spectroscopy: fundamentals and applications

PL Polavarapu - 2016 - taylorfrancis.com
This book details chiroptical spectroscopic methods: electronic circular dichroism (ECD),
optical rotatory dispersion (ORD), vibrational circular dichroism (VCD), and vibrational …

Concerted reactions that produce diradicals and zwitterions: electronic, steric, conformational, and kinetic control of cycloaromatization processes

RK Mohamed, PW Peterson, IV Alabugin - Chemical Reviews, 2013 - ACS Publications
The broad utility of cyclic structures accounts for the key roles that cycle-forming reactions
play in synthetic designs. Most of these reactions can be classified as either a cyclization of …

Stereoelectronic effects and general trends in hyperconjugative acceptor ability of σ bonds

IV Alabugin, TA Zeidan - Journal of the American Chemical …, 2002 - ACS Publications
A systematic study of general trends in σ acceptor properties of C− X bonds where X is a
main group element from groups IVa− IIa is presented. The acceptor ability of the C− X σ …