Results 41 to 50 of about 327,777 (207)

Regioselective Reactions of Highly Substituted Arynes [PDF]

open access: yes, 2010
The fully regioselective reactivity of four new highly substituted silyl aryl triflate aryne precursors in aryne acyl-alkylation, acyl-alkylation/condensation, and heteroannulation reactions is reported.
Bugga, Pradeep   +4 more
core   +2 more sources

An Efficient Synthesis of 1-Aryl-3-(indole-3-yl)-3-(2-aryl-1,2,3-triazol-4-yl)propan-1-one Catalyzed by a Brønsted Acid Ionic Liquid

open access: yesMolecules, 2010
An efficient synthesis of novel 1-aryl-3-(indole-3-yl)-3-(2-aryl-1,2,3-triazol-4-yl)propan-1-ones from indoles and 1-aryl-3-(2-aryl-1,2,3-triazol-4-yl)propan-1-one using a Brønsted acid ionic liquid [Sbmim][HSO4] as catalyst is described.
Chuan-Ji Yu, Chen-Jiang Liu
doaj   +1 more source

One-pot H/D exchange and low-coordinated iron electrocatalyzed deuteration of nitriles in D2O to α,β-deuterio aryl ethylamines

open access: yesNature Communications, 2022
One-pot efficient synthesis of α,β-deuterio aryl ethylamines with high deuterium ratios using an easy-to-handle deuterated source under ambient conditions is desirable.
Rui Li   +5 more
doaj   +1 more source

Bimetallic Effects on Ethylene Polymerization in the Presence of Amines: Inhibition of the Deactivation by Lewis Bases [PDF]

open access: yes, 2012
Dinickel complexes supported by terphenyl ligands appended with phenoxy and imine donors were synthesized. Full substitution of the central arene blocks rotation around the aryl–aryl bond and allows for the isolation of atropisomers.
Agapie, Theodor   +2 more
core   +2 more sources

FeO(OH)@C‐Catalyzed Selective Hydrazine Substitution of p‐Nitro‐Aryl Fluorides and their Application for the Synthesis of Phthalazinones

open access: yesChemistryOpen, 2022
An efficient hydrazine substitution of p‐nitro‐aryl fluorides with hydrazine hydrates catalyzed by FeO(OH)@C nanoparticles is described. This hydrazine substitutions of p‐nitro‐aryl fluorides bearing electron‐withdrawing groups proceeded efficiently with
Dingzhong Li   +5 more
doaj   +1 more source

2-{2,6-Bis[bis(4-fluorophenyl)methyl]-4-chlorophenylimino} -3-aryliminobutylnickel(II) bromide complexes: Synthesis, characterization, and investigation of their catalytic behavior [PDF]

open access: yes, 2014
The series of 2-{2,6-bis[di(4-fluorophenyl)methyl]-4-chlorophenylimino}-3- aryliminobutane derivatives (L1-L5) and their nickel(II) dibromide complexes (Ni1-Ni5) were synthesized, and all organic compounds were fully characterized by the Fourier ...
Hao, Xiang   +5 more
core   +2 more sources

Methoxy-Directed Aryl-to-Aryl 1,3-Rhodium Migration [PDF]

open access: yesJournal of the American Chemical Society, 2013
Through-space metal/hydrogen shift is an important strategy for transition-metal-catalyzed C-H bond activation. Here we describe the synthesis and characterization of a Rh(I) 2,6-dimethoxybenzoate complex that underwent stoichiometric rearrangement via a highly unusual 1,3-rhodium migration.
Jing, Zhang   +5 more
openaire   +2 more sources

Transition-metal-catalyzed synthesis of phenols and aryl thiols

open access: yesBeilstein Journal of Organic Chemistry, 2017
Phenols and aryl thiols are fundamental building blocks in organic synthesis and final products with interesting biological activities. Over the past decades, substantial progress has been made in transition-metal-catalyzed coupling reactions, which ...
Yajun Liu, Shasha Liu, Yan Xiao
doaj   +1 more source

Peripherally-metallated porphyrins: meso-n1-porphyrinyl-platinum(II) complexes of 5,15-diaryl- and 5,10,15-triarylporphyrins [PDF]

open access: yes, 2002
Attempted metathesis reactions of peripherally-metallated meso-η1-porphyrinylplatinum(II) complexes such as trans-[PtBr(NiDPP)(PPh3)2] (H2DPP = 5,15-diphenylporphyrin) with organolithium reagents fail due to competitive addition at the porphyrin ring ...
Arnold, Dennis   +2 more
core   +2 more sources

Photoinitiated oxidative addition of CF3I to gold(I) and facile aryl-CF3 reductive elimination. [PDF]

open access: yes, 2014
Herein we report the mechanism of oxidative addition of CF3I to Au(I), and remarkably fast Caryl-CF3 bond reductive elimination from Au(III) cations. CF3I undergoes a fast, formal oxidative addition to R3PAuR (R = Cy, R = 3,5-F2-C6H4, 4-F-C6H4, C6H5, 4 ...
TOSTE, F. Dean   +2 more
core   +1 more source

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