Results 131 to 140 of about 42,802 (288)
A Practical and Flexible De Novo Synthesis of Deoxygenated Carbasugars and Their Cyclitol Epoxides
A de novo synthesis route comprising enantioselective Brown crotylation and ring‐closing metathesis as the key steps enables the synthesis of a‐ and b‐carba‐paratose, a‐ and b‐carba‐colitose as well as four configurational deoxycyclophellitol isosteres.
Yevhenii Radchenko +4 more
wiley +1 more source
Resin‐supported tripeptide achieved the dynamic kinetic resolution in the catalytic aldol reaction of formylated heterobiaryl N‐oxides with high efficiency and enantioselectivity. The system features a broad substrate scope and a recyclable catalyst.
Jiaqi Tian +3 more
wiley +1 more source
The effect of alcohol on the performance of lipase-immobilized enzymatic membrane reactor for esterification of (R,S)-ketoprofen [PDF]
The effect of alcohols on the performance of lipase-immobilized enzymatic membrane reactor (EMR) for enantioselective esterification of (R,S)-ketoprofen has been studied. In this work, mixed solvent medium was used and the (R)-ketoprofen was reacted with
Bhatia, Subhash +3 more
core
Photochemical Decatungstate‐Catalyzed Hydroacylation of Maleimides
A photocatalytic protocol to access substituted succinimides via tetra‐n‐butylammonium decatungstate photocatalysis is reported. This direct radical‐driven hydroacylation of a variety of N‐substituted maleimides shows tolerance to various aldehydes (or alkanes), affording differentially substituted succinimides in high yields. Succinimides constitute a
Manos V. G. Lantzanakis +2 more
wiley +1 more source
1,2‐Diazetidines − Structure, Synthesis, and Functionalization
1,2‐Diazetidines are saturated four‐membered heterocycles featuring two adjacent nitrogen atoms. Despite recent advances in their synthesis and promising potential in medicinal chemistry, the chemistry of these cyclic hydrazines remains underexplored.
Stefan Roesner
wiley +1 more source
A stereolabile lactone‐bridged biaryl enables dynamic kinetic resolution to provide a conformationally stable ring‐opened biaryl. A significant positive effect of water‐immiscible organic cosolvents on the enantioselectivity in a reaction catalyzed by porcine liver esterase has been discovered for the first time.
Neha Dhiman +6 more
wiley +1 more source
Bridging the gap. Beyond deck functionalization, the ethylene bridges of [2.2]paracyclophanes offer a largely unexploited reactivity landscape. This review showcases strategies to functionalize these bridges and leverage them to build novel cyclophane architectures.
Rongyu Sun +3 more
wiley +1 more source
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 +6 more
doaj +1 more source
Flavour Ester Synthesis by Immobilized Lipases: A Research Overview With Industrial Relevance
Research landscape of flavour ester synthesis by immobilized lipases, highlighting enzymatic routes, major research themes and aspects related to industrial relevance, including enzyme reuse, solvent‐free systems, process intensification and scale‐up potential.
Nicole Marasca +3 more
wiley +1 more source
Insights into antibody catalysis: Structure of an oxygenation catalyst at 1.9-Å resolution [PDF]
The x-ray crystal structures of the sulfide oxidase antibody 28B4 and of antibody 28B4 complexed with hapten have been solved at 2.2-Å and 1.9-Å resolution, respectively.
Hsieh-Wilson, Linda C. +2 more
core

