Results 91 to 100 of about 19,383 (256)
Organocatalytic Enantioselective Mannich Reaction: Direct Access to Chiral β‑Amino Esters
ACS Omega, 2019 G. Ravi Kumar +4 more
doaj +1 more source
Mechanochemical Amidation Mediated by 1,1’‐Oxalyldiimidazole for the Synthesis of Agrochemicals
Chemistry – A European Journal, EarlyView.Mechanochemical amidation using 1,1'‐oxalyldiimidazole (ODI) overcomes limitations of 1,1’‐carbonyl diimidazole (CDI) as coupling agent by enabling the efficient mechanochemical synthesis of three marketed agrochemicals from deactivated carboxylic acids.
Andrea Casagrande +6 more
wiley +1 more source
FLP Mediated Conversion of Difluorobenzylalkynes to Fluoroallenyl Oniums via an SN1’ Pathway
Chemistry – A European Journal, EarlyView.Frustrated Lewis pair (FLP) selective C‒F activation of difluorobenzylalkynes allows the formation of fluoroallenic oniums via an SN1’ substitution pathway. The fluoroallenic onium salts are synthetic precursors that allow subsequent functionalization at allenic and onium positions.
Max Coles +6 more
wiley +1 more source
Mild C─F Activation of Azido(per)Fluoroalkanes
Chemistry – A European Journal, EarlyView.Mild and selective activation of C(sp3)–F bonds in azido(per)fluoroalkanes using thiolates was developed, leading to novel functionalized azides. The reaction is initiated by nucleophilic attack of the sulfur atom to the terminal nitrogen of the azido group, followed by fluoride ion elimination.
Olena Shaitanova +7 more
wiley +1 more source
Chemistry – A European Journal, EarlyView.Cyclopropylamines have emerged as powerful photocatalytic building blocks. Upon light‐induced single‐electron oxidation, they undergo strain‐release ring opening to generate distonic iminium radicals that enable diverse transformations, including ring‐opening functionalization, formal [3 + 2] cycloadditions, radical cascades, and asymmetric bond ...
Maria Chiara Cabua +3 more
wiley +1 more source
Well‐Defined Nickel Precatalysts: Form, Function, and Application
Chemistry – A European Journal, EarlyView.This review provides guidance on which nickel precatalysts to choose for a given application or which properties to prioritize in reaction development. A summary of the ease of synthesis, stability, diversity, accessibility, modularity, and general applicability is provided along with a related infographic.
Morgan E. John +3 more
wiley +1 more source
N‐Sulfonyl Azalevoglucosan: A Versatile Platform for the Synthesis of Polysubstituted Piperidines
Chemistry – A European Journal, EarlyView.Gain by strain: The synthesis of a levoglucosan analog, in which the pyranose oxygen has been replaced by a nitrogen, allows navigation on the piperidine ring to iteratively install functional groups at C1, C2, C3, C4, and C6 positions using simple experimental protocols with minimal protecting group manipulation.
Dylan Yorga +6 more
wiley +1 more source
Stereoselective Synthesis of β‐C‐glycosides From Exoglycals Through Radical C─C Bond Formation
Chemistry – A European Journal, EarlyView.We describe herein a convenient strategy for the preparation of β‐C‐glycosides via the addition of radical species onto exoglycals. This method is efficient, general and achieved in mild conditions starting from xanthates derivatives and using triethylborane as initiator and 4‐tert‐butylcatechol as hydrogen atom source. This hydroalkylation reaction is
Noémie Murard +2 more
wiley +1 more source
EcoEnergy, EarlyView.This review deals with the recent advancements in design and engineering of BiOCl‐based Z‐scheme photocatalysts with emphasis on tailoring of structural, optoelectronic properties and heterojunction assembly for environmental applications including photodegradation of industrial organic waste, pharmaceuticals, pesticides, herbicides, toxic heavy metals,
Sakshi Sharma +7 more
wiley +1 more source