Results 51 to 60 of about 395,120 (176)
Evolution of asymmetric organocatalysis: multi- and retrocatalysis [PDF]
Green Chemistry, 2012 The evolution of organocatalysis led to various valuable approaches, such as multicomponent as well as domino and tandem reactions. Recently, organomulticatalysis, i.e., the modular combination of distinct organocatalysts enabling consecutive reactions to be performed in one pot, has become a powerful tool in organic synthesis.
Wende, Raffael C. +2 more
openaire +3 more sources
(2R,4R)-2-Hydroxy-4-(2-methoxyphenyl)bicyclo[3.3.1]nonan-9-one
Acta Crystallographica Section E, 2009 The title compound, C16H20O3, contains a bicyclic ring system with two chiral centers. The crystal structure is stabilized by intermolecular O—H...O hydrogen bonds.
Shuping Luo +4 more
doaj +1 more source
Chemistry – A European Journal, EarlyView.Enantioenriched α‐substituted primary amines are efficiently prepared by rhodium‐catalyzed asymmetric transfer hydrogenation of ortho‐hydroxyaryl N─H imines under mild conditions using a low catalyst loading and ammonium formate as the hydrogen source in high yields (up to 99%) and enantioselectivities (up to 99% ee).
Chonghuo Liu +4 more
wiley +1 more source
Molecules, 2016 The organocatalysis-based dynamic kinetic resolution (DKR) process has proved to be a powerful strategy for the construction of chiral compounds. In this feature review, we summarized recent progress on the DKR process, which was promoted by chiral ...
Pan Li +3 more
doaj +1 more source
Nature Communications, 2023 The discovery of highly enantioselective catalysts and elucidating their generality face great challenges due to the complex multidimensional chemical space of asymmetric catalysis and inefficient screening methods.
Wenjing Nie +5 more
doaj +1 more source
Iso‐Tellurazole N‐Oxides Assemble Adaptively Folded Macrocyclic Dodecamers
Chemistry – A European Journal, EarlyView.Te…O Chalcogen bonding links twelve molecules into a ring that wraps itself around molecular guests. ABSTRACT Self‐assembled macrocyclic dodecamers were found in the crystals of new pseudo‐polymorphs of iso‐tellurazole N‐oxides. These structures are formed by molecules connected by NTe…O chalcogen bonds and are folded in a pattern that defines 89–153 ...
Jin Z. Wang +4 more
wiley +1 more source
Celebrating the 2021 Nobel Prize in Chemistry. Reinventing asymmetric organocatalysis [PDF]
, 2022 La concessió del Premi Nobel de Química 2021 als professors Benjamin List i David MacMillan pel desenvolupament de l’organocatàlisi asimètrica no va constituir cap sorpresa.
Moyano, Albert
core
A One-Pot Tandem Strategy in Catalytic Asymmetric Vinylogous Aldol Reaction of Homoallylic Alcohols
Molecules, 2016 Reported is a rationally-designed one-pot sequential strategy that allows homoallylic alcohols to be employed in a catalytic, asymmetric, direct vinylogous aldol reaction with a series of activated acyclic ketones, including trifluoromethyl ketones, γ ...
Xufeng Hou +3 more
doaj +1 more source
EcoEnergy, EarlyView.This review provides a critical comparative analysis of circular and bio‐sourced polymers for energy storage, systematically evaluating natural feedstocks alongside recycling and upcycling strategies for battery components. Key structure–property–performance relationships and inherent trade‐offs between sustainability metrics and electrochemical ...
Priyank Sinha +3 more
wiley +1 more source
Selective N‐Functionalization of Pyrazoles
European Journal of Organic Chemistry, EarlyView.This review traces the evolution of regioselective N‐functionalization strategies for pyrazoles, a key class of nitrogen heterocycles widely used in medicinal chemistry. Due to rapid tautomerism, N‐functionalization often lacks selectivity, leading to poor and unpredictable regioisomeric outcomes.
Lucas Popek +2 more
wiley +1 more source