Results 51 to 60 of about 11,460 (224)

Regiospecific Decarboxylative Allylation of Nitriles

open access: yes, 2016
Palladium-catalyzed decarboxylative α-allylation of nitriles readily occurs with use of Pd2(dba)3 and rac-BINAP. This catalyst mixture also allows the highly regiospecific α-allylation of nitriles in the presence of much more acidic α-protons.
Antonio Recio (1849078)   +1 more
core   +1 more source

New Radical Allylation Reaction

open access: yes, 2016
New Radical Allylation ...
Béatrice Quiclet-Sire (2675125)   +1 more
core   +2 more sources

Energetics of the Allyl Group [PDF]

open access: yesThe Journal of Organic Chemistry, 2007
Aiming to improve our understanding of the stability of radicals containing the allylic moiety, carbon-hydrogen bond dissociation enthalpies (BDEs) in propene, isobutene, 1-butene, (E)-2-butene, 3-metylbut-1-ene, (E)-2-pentene, (E)-1,3-pentadiene, 1,4-pentadiene, cyclohexene, 1,3-cyclohexadiene, and 1,4-cyclohexadiene have been determined by quantum ...
Filipe, Agapito   +4 more
openaire   +2 more sources

Asymmetric organocatalytic synthesis of chiral homoallylic amines

open access: yesBeilstein Journal of Organic Chemistry
In recent decades, the chiral allylation of imines emerged as a key methodology in the synthesis of alkaloids and natural products with 4-, 5- and 6-membered cyclic amine motifs.
Nikolay S. Kondratyev, Andrei V. Malkov
doaj   +1 more source

1‐Azabicyclo[1.1.0]butanes (ABBs) on the Map: Mechanistic Pathways for Catalytic Ring Opening and Functionalizations

open access: yesAngewandte Chemie International Edition, EarlyView.
Catalytic strain‐release ring opening and functionalizations of 1‐azabicyclo[1.1.0]butanes (ABBs) represent a promising strategy for accessing diverse azetidine products. These transformations proceed via polar pathways, radical pathways, and hybrid mechanisms that combine both.
James Shao‐Jiun Yang   +1 more
wiley   +1 more source

Origin of Protonation Side Products in Pd-Catalyzed Decarboxylative Allylation Reactions: Evidence for In Situ Modification of Triphenylphosphine Ligand [PDF]

open access: yes, 2021
Palladium-catalyzed decarboxylative allylation (DcA) is a well-established method of carbon-carbon bond formation. This type of coupling is quite attractive, as the only byproduct is CO2.
Monica A., Gill   +2 more
core   +2 more sources

(E)-2-(1,3-Diphenylallyl)-3,5-dimethoxyphenol

open access: yesMolbank, 2023
The synthesis of (E)-2-(1,3-diphenylallyl)-3,5-dimethoxyphenol is described by means of the reaction of 3,5-dimethoxyphenol with (E)-1,3-diphenylprop-2-en-1-ol in 1,1,1,3,3,3-hexafluoroispropanol (HFIP), which acts as a solvent and reaction promoter. The
Lara Mollà-Guerola, Alejandro Baeza
doaj   +1 more source

Iridium Catalyzed Enantioselective Intermolecular Indole C2-Allylation [PDF]

open access: yes, 2020
The enantioselective intermolecular C2-allylation of 3-substituted indoles is reported for the first time. This directing group-free approach relies on a chiral Ir-(P, olefin) complex and Mg(ClO4)2 Lewis acid catalyst system to promote allylic ...
Zheng, Chao   +13 more
core   +1 more source

Total syntheses of the parvistemoline alkaloids enabled by stereocontrolled Ir/Pd-catalyzed allylic alkylation

open access: yesNature Communications
The functionalized polycycle with densely contiguous tertiary stereocenters is a formidable challenge in synthesizing the parvistemoline family of Stemona alkaloids.
Xiao Liang   +7 more
doaj   +1 more source

Synthesis and Activity‐Based Protein Profiling Identifies Aldo‐Keto Reductase 1C3 as Target Protein of Myxoglucamides

open access: yesAngewandte Chemie International Edition, EarlyView.
Myxoglucamide A—a novel glycolipopeptide isolated from myxobacteria—was synthesized, and activity‐based protein profiling identified aldo‐keto reductase 1C3 (AKR1C3) as its main target in human cells. Structure‐activity relationship studies, together with biophysical characterization and X‐ray crystallography, elucidated the structural basis of AKR1C3 ...
Thomas Siemon   +9 more
wiley   +1 more source

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