Results 131 to 140 of about 27,319 (289)
Chemistry – A European Journal, EarlyView.Monosubstituted N‐arylhydroxylamines represent a unique subclass of hydroxylamines that act as pivotal intermediates in redox transformations and as versatile platforms for further synthetic transformations. They serve as key building blocks in the synthesis of architecturally complex heterocycles and other valuable organic compounds.
Michael G. Kallitsakis +2 more
wiley +1 more source
Enzyme Stereoselectivity and Substrate Specificity of Aldo-KetoReductases
, 2015 Enzyme Stereoselectivity and Substrate Specificity of Aldo ...
Flingos, Emily +4 more
core
State‐of‐the‐Art and Synthetic Challenges for Hydrosilane Production
Chemistry – A European Journal, EarlyView.The synthesis of hydrosilanes is currently energy intensive and their recycling is not considered. However, these compounds are important in many industrial fields but also for the valorization of oxygenated waste, towards a circular economy. This review compares the available synthetic routes and highlights the remaining challenges for the production ...
Gabriel Durin +3 more
wiley +1 more source
Enzyme Stereoselectivity and Substrate Specificity of Yeast Reductase YDL124w
, 2014 Enzyme Stereoselectivity and Substrate Specificity of Yeast Reductase ...
Rivas-Torres, Esmeralda
core
Origins of Stereoselectivity in Peptide-Catalyzed Kinetic Resolution of Alcohols
, 2016 The origin of the stereoselectivity of the tetrapeptide-catalyzed kinetic resolution of trans-2-N-acetamidocyclohexanol is investigated by means of density functional theory calculations. Transition states for the functionalization of both (R,R) and (S,S)
Fahmi Himo (1295097) +9 more
core +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 +2 more
wiley +1 more source
Chemistry – A European Journal, EarlyView.Aminocatalytically generated isobenzofulvenes and 3‐oxidopyridinium betaines act as ambiphilic reaction partners in orbital‐symmetry‐allowed [10+4] cycloadditions or formally symmetry‐forbidden concerted thermal [10+6] cycloadditions. The reaction furnishes three cycloadducts: one [10+4] cycloadduct and two regioisomeric [10+6] cycloadducts.
Jonas Faghtmann +7 more
wiley +1 more source
Breaking the Mold: Electrophilic Hydrophosphanation Emerges
Chemistry – A European Journal, EarlyView.Electrophilic hydride attack on the olefin, instead of the classical nucleophilic addition by a phosphanido ligand, is unveiled in rhodium‐catalyzed olefin hydrophosphanation. This hydride‐driven pathway operates for both activated and inactivated olefins, with transition states characterized by elongated Rh─H bonds and nascent C─H bond formation ...
Víctor Varela‐Izquierdo +4 more
wiley +1 more source
Bioinspired Design and Synthesis of Polyphenolic Star‐Like and Hyperbranched Polyester Models
Chemistry – A European Journal, EarlyView.Gallotannin‐inspired star‐like and hyperbranched aromatic polyesters were synthesized from D‐glucose and ABn‐type phenolic acid monomers, such as protocatechuic acid. This bioinspired approach afforded polyphenolic polymeric nanoparticles able to encapsulate hydrophobic dyes, opening new perspectives for biobased encapsulation and delivery systems ...
Guanfei Shen +4 more
wiley +1 more source
Chemistry – A European Journal, EarlyView.Efficient cationic gold(I)‐catalyzed intermolecular cyclopropanation of 7‐alkynylnorbornadiene derivatives has been developed. This methodology offers the synthesis of a new class of norbornene derivatives in high yield with excellent diastereoselectivity.
Kento Ishida +3 more
wiley +1 more source