B(C6F5)3-catalyzed oxidative deamination/cyclization cascade reaction of benzylamines and ketones for the synthesis of 2,4,6-triarylpyridines
Sign Up to like & getrecommendations! Published in 2018 at "Tetrahedron Letters"
DOI: 10.1016/j.tetlet.2018.08.060
Abstract: Abstract The B(C6F5)3-catalyzed oxidative deamination/cyclization cascade reaction of benzylamines and ketones for the construction of 2,4,6-triarylpyridines under metal-/solvent-free conditions has been successfully achieved. The advantages of this strategy include good functional group tolerance, low catalyst… read more here.
Keywords: deamination cyclization; cascade reaction; cyclization cascade; c6f5 catalyzed ... See more keywords
B(C6F5)3-Catalyzed Diastereoselective Formal (4 + 1)-Cycloaddition of Vinylcyclopropanes and Et2SiH2.
Sign Up to like & getrecommendations! Published in 2021 at "Organic letters"
DOI: 10.1021/acs.orglett.1c01565
Abstract: A formal (4 + 1)-cycloaddition of vinylcyclopropanes and Et2SiH2 to afford 3,4-disubstituted silolanes is reported. The reaction sequence commences with the known B(C6F5)3-catalyzed alkene hydrosilylation with dihydrosilanes. Cleavage of the remaining Si-H bond in the… read more here.
Keywords: c6f5 catalyzed; catalyzed diastereoselective; formal cycloaddition; cycloaddition vinylcyclopropanes ... See more keywords
B(C6F5)3-Catalyzed Reductive Denitrogenation of Benzonitrile Derivatives.
Sign Up to like & getrecommendations! Published in 2022 at "Organic letters"
DOI: 10.1021/acs.orglett.2c01003
Abstract: A B(C6F5)3-catalyzed reductive denitrogenation of aromatic nitriles is reported, achieving the metal-free transformation of a cyano into a methyl group in a single synthetic operation. Tris(phenylsilyl)amine is liberated as the nitrogen-containing byproduct. On the basis… read more here.
Keywords: denitrogenation benzonitrile; reductive denitrogenation; c6f5 catalyzed; benzonitrile derivatives ... See more keywords
Mechanistic insight into B(C6F5)3 catalyzed imine reduction with PhSiH3 under stoichiometric water conditions
Sign Up to like & getrecommendations! Published in 2021 at "RSC Advances"
DOI: 10.1039/d1ra02399c
Abstract: A DFT and experimental study on the mechanism of B(C6F5)3 catalyzed imine reduction is performed using PhSiH3 as reductant under stoichiometric water conditions. Ingleson’s path B is reconfirmed here. And four novel (C6F5)3B–OH2 induced pathways… read more here.
Keywords: c6f5 catalyzed; imine reduction; catalyzed imine; water ... See more keywords
B(C6F5)3-catalyzed cyclopropanation of 3-alkenyl-oxindoles with diazomethanes.
Sign Up to like & getrecommendations! Published in 2023 at "Chemical communications"
DOI: 10.1039/d2cc06744g
Abstract: Spirocyclopropane-oxindoles are key motifs in biologically active compounds and are versatile synthetic intermediates. Herein, we report a metal-free, B(C6F5)3 catalyzed cyclopropanation of 3-alkenyl-oxindoles with diazomethanes. This provides 25 variants of spirocyclopropane-oxindole derivatives. These spirocyclopropane-oxindole products… read more here.
Keywords: cyclopropanation alkenyl; catalyzed cyclopropanation; alkenyl oxindoles; c6f5 catalyzed ... See more keywords
(HMe2SiCH2)2: A Useful Reagent for B(C6F5)3-Catalyzed Reduction–Lactonization of Keto Acids: Concise Syntheses of (–)-cis-Whisky and (–)-cis-Cognac Lactones
Sign Up to like & getrecommendations! Published in 2017 at "Synlett"
DOI: 10.1055/s-0036-1588488
Abstract: (HMe2SiCH2)2 has been utilized as a useful reagent for B(C6F5)3-catalyzed reduction–lactonization of keto acids to synthesize γ- and δ-lactones. The process led concisely to (–)-cis-whisky and (–)-cis-cognac lactones in respective overall yields of 32% and… read more here.
Keywords: reagent c6f5; reduction lactonization; c6f5 catalyzed; lactonization keto ... See more keywords
B(C6F5)3 catalyzed synthesis of dihydropyrano[3,2-b]chromenediones under solvent-free conditions
Sign Up to like & getrecommendations! Published in 2019 at "Synthetic Communications"
DOI: 10.1080/00397911.2019.1585542
Abstract: Abstract A simple, efficient, solventless, and one step, B(C6F5)3 catalyzed, synthesis of dihydropyrano[3,2-b]chromenediones from dimedone, aldehyde and kojic acid is described. This protocol proceeds smoothly, accommodates aromatic as well as heteroaromatic aldehydes and gives dihydropyrano[3,2-b]chromenediones… read more here.
Keywords: dihydropyrano chromenediones; catalyzed synthesis; c6f5 catalyzed; synthesis dihydropyrano ... See more keywords
One-pot B(C6F5)3 catalyzed cascade synthesis of 2-substituted-2,3-dihydroquinazolin-4(1H)-ones
Sign Up to like & getrecommendations! Published in 2019 at "Synthetic Communications"
DOI: 10.1080/00397911.2019.1679539
Abstract: Abstract A new and efficient B(C6F5)3 catalyzed domino strategy has been developed for the synthesis of 2-substituted quinazolinones. The reaction utilizes 2-aminobenzamide and aldehydes for a one-pot protocol. A wide range of substrate scope, functional… read more here.
Keywords: c6f5 catalyzed; synthesis substituted; one pot;