Copper alyzed benzylic oxidation of C sp3 H bonds PubAg
A selective oxidation of benzylic C sp3 H bonds to C sp3 O bonds alyzed by copper complexes of quinolineimine ligands was developed with peresters as oxidants under mild reaction conditions which converted benzylic methylenes directly into benzylic alcohols and esters by means of direct CH bond functionalization.
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Copper alyzed benzylic oxidation of C sp3 H bonds
A selective oxidation of benzylic C sp 3 H bonds to C sp 3 O bonds alyzed by copper complexes of quinolineimine ligands was developed with peresters as oxidants under mild reaction conditions which converted benzylic methylenes directly into benzylic alcohols and esters by means of direct CH bond functionalization.
Copper II Catalyzed Benzylic C sp3 H Aerobic Oxidation of
The reaction represents the first example of the direct synthesis of arylketoesters from arylacetimidates through the aerobic oxidation of a benzylic C sp3 H CO bond in moderate to good yield. This transformation occurs under mild reaction conditions with a wide range of substrates and utilizes a readily available oxidant and alyst.
Copper alyzed oxidative benzylic CH cyclization via
Shan XH. Zheng HX. Yang B. et al. Copper alyzed oxidative benzylic CH cyclization via iminyl radical from intermolecular anionradical redox relay. Nat Commun 10 908 2019 . doi
CopperCatalyzed Benzylic CH Functionalization Oxidation
Herein a copper alyzed oxidative CN/CS bond formation through benzylic C sp 3 H functionalization oxidation and cyclization of methylarenes is reported. Various 2arylbenzothiazoles have been synthesized in moderate to excellent yields with readily available o iodoaniline potassium sulfide and methylarenes as materials.
Copper alyzed aerobic benzylic sp3 CH oxidation mediated
An efficient and practical aerobic benzylic sp3 CH oxidation as a key step towards the domino multicomponent synthesis of 245trisubstituted imidazoles has been reported. This green methodology employs an inexpensive alytic copper/oxygen system and proceeds under mild reaction conditions. A variety of
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Copper alysed benzylic CH coupling with alcohols via
Here we demonstrate copper alysed oxidative crosscoupling of benzylic CH bonds with alcohols to afford benzyl ethers enabled by a redox buffering strategy that maintains the activity of the copper alyst throughout the reaction.
CopperCatalyzed Benzylic C H Bond Thiocyanation: Enabling
Keywords: copper alysis site selectivity CH thiocyanation latesstage functionalization radical relay Introduction Advances in CH functionalization have enriched the organic synthesis toolbox.15 Specically selective functionalization of the ubiquitous benzylic CH bond in organic molecules has a broad impact ranging from