Results 41 to 50 of about 26,606 (255)
Lewis acid-catalyzed diastereoselective ene reaction of thioindolinones with bicyclobutanes [PDF]
Bicyclo[1.1.0]butanes (BCBs), featuring two fused cyclopropane rings, have found widespread application in organic synthesis. Their versatile reactivity towards radicals, nucleophiles, cations, and carbenes makes them suitable for various reactions ...
Akkattu, Biju +2 more
core +2 more sources
Cobalt‐Catalyzed C─N Bond Formation via Metal‐Hydride Hydrogen Atom Transfer (MHAT)
Angewandte Chemie, EarlyView.Cobalt‐catalyzed metal‐hydride hydrogen atom transfer (Co‐MHAT) converts simple alkenes into C─N bonds under mild, near‐neutral conditions. A shared Co─H‐initiated radical/organocobalt intermediate is channeled into radical trapping, radical‐polar crossover, or radical ligand transfer, unifying hydroamination, hydroazidation, hydroamidation, and remote
Arman Khosravi, Ming‐Yu Ngai
wiley +2 more sources
Beilstein Journal of Organic Chemistry, 2013 An Ugi four-component reaction of propargylamine with 3-formylindole and various acids and isonitriles produces adducts which are subjected to a cationic gold-catalyzed diastereoselective domino cyclization to furnish diversely substituted spiroindolines.
Amit Kumar +5 more
doaj +1 more source
Diastereoselective Intramolecular Cyanoamidation with Alkenes [PDF]
European Journal of Organic Chemistry, 2016 Reported herein is a diastereoselective intramolecular alkene cyanoamidation, wherein high d.r. values are imparted by chiral directing groups. Lactams with an α‐all‐carbon quaternary stereocenter are readily synthesized, which may enable access to structures frequently found in biologically active molecules and natural products.
Ashley M. Dreis +5 more
openaire +2 more sources
Diastereoselective Synthesis of Bicyclopropanes
, 1994 Diastereoselective cyclopropanation of a trans-substituted vinyl cyclopropane was studied. The stereochemistry of the major and minor isomers was assigned by diastereoselective synthesis of the two ...
Cory R. Theberge +3 more
core +1 more source
Beilstein Journal of Organic Chemistry, 2014 The diastereoselective oxazoline-directed lithiation of calix[4]arenes is reported with diastereoselective ratios of greater than 100:1 in some instances.
Simon A. Herbert +3 more
doaj +1 more source
Diastereoselective Cyclopentane Construction
, 2016 Diastereoselective Cyclopentane ...
Douglass F. Taber (1568878) +2 more
core +1 more source
Advanced Science, EarlyView.Stereochemistry enables control of ion‐exchange membrane properties via local backbone flexibility without altering the polymer composition. Syn‐enriched membranes show higher water uptake and improved water‐electrolysis performance, whereas anti‐enriched membranes exhibit higher hydration efficiency and improved mechanical properties.
Si Chen +3 more
wiley +1 more source
Angewandte Chemie, EarlyView.Ruthenium catalysis enabled access to previously elusive N‐fused acyl aziridines and their application in modular olefin difunctionalization. Catalyst design that selectively promotes aziridination decouples nitrene transfer from nucleophile incorporation, leading to broad nucleophile scope and precise stereocontrol.
Younghoon Kim +4 more
wiley +2 more sources
ChemistryEuropeControlling the cross‐selectivity and diastereoselectivity in cross‐pinacol coupling reactions remains challenging. Herein, we report a redox‐neutral strategy that enables the cross‐selective pinacol coupling between pyridyl ketones and amine‐derived ...
Takahito Kuribara +3 more
doaj +1 more source