Silica Support‐Enhanced Pd‐Catalyzed Allylation Using Allylic Alcohols
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DOI: 10.1002/cctc.201801097
Abstract: Although allylation using allylic alcohol is an environmentally‐friendly method because of water being the sole byproduct in such reactions, allylic alcohol is one of the most difficult allylating agents in Pd‐catalyzed allylation of nucleophiles. In… read more here.
Keywords: catalyzed allylation; allylic alcohols; using allylic; allylation using ... See more keywords
Accumulation of Active Species in Silica Mesopore: Effect of the Pore Size and Free Base Additives on Pd‐catalyzed Allylation using Allylic Alcohol
Sign Up to like & getrecommendations! Published in 2020 at "ChemCatChem"
DOI: 10.1002/cctc.202000266
Abstract: A mesoporous silica‐supported Pd complex was prepared using various types of porous silica supports (pore size: 16–31 Å). The effects of the pore size and base additive properties on the catalytic allylation were investigated. The activity… read more here.
Keywords: catalyzed allylation; base additives; pore size; size ... See more keywords
Gold(I)‐Catalyzed Allylation and Tandem Allylation–Cycloisomerization of Stannylated Propargyl Acetates with Allylsilanes
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DOI: 10.1002/ejoc.202500253
Abstract: Bicyclo[3.1.0]hex‐2‐enes, synthesized by the cycloisomerization of 1,5‐enynes, serve as key scaffolds in various natural products. Gold(I)‐catalyzed cycloisomerization of 1,5‐enynes is an efficient route to bicyclo[3.1.0]hex‐2‐enes. However, gold(I)‐catalyzed 1,5‐enyne synthesis, particularly with a terminal alkyne, has… read more here.
Keywords: tandem allylation; stannylated propargyl; allylation cycloisomerization; gold catalyzed ... See more keywords
Allylation of C(sp 3 )─H Bonds Using a MW/Persulfate Protocol
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DOI: 10.1002/hlca.202500191
Abstract: The C(sp 3 )─H allylation reaction using allyl phenyl sulfone was affected by persulfate anion (PS) under microwave (MW) irradiation. The MW/PS protocol has been found to be applicable to a wide variety of C(sp… read more here.
Keywords: protocol; persulfate protocol; allylation; allylation bonds ... See more keywords
Theoretical studies on chiral formamide-mediated asymmetric allylation of aldimines
Sign Up to like & getrecommendations! Published in 2019 at "Journal of the Iranian Chemical Society"
DOI: 10.1007/s13738-019-01795-z
Abstract: Abstract The enantioselective allylation of simple aldimines has been studied making use of density functional theory calculations. The proposed reaction mechanism includes eight possible transition-state structures, four of them leading to the R and four… read more here.
Keywords: theoretical studies; studies chiral; chiral formamide; allylation ... See more keywords
Palladium-catalyzed allylation and deacylative allylation of 3-acetyl-2-oxindoles with allylic alcohols
Sign Up to like & getrecommendations! Published in 2018 at "Tetrahedron"
DOI: 10.1016/j.tet.2017.11.041
Abstract: We gratefully acknowledge financial support from the Spanish Ministerio de Economia y Competitividad (MINECO) (projects CTQ2013-43446-P and CTQ2014-51912-REDC), the Spanish Ministerio de Economia, Industria y Competitividad, Agencia Estatal de Investigacion (AEI) and Fondo Europeo de… read more here.
Keywords: catalyzed allylation; allylation acetyl; deacylative allylation; allylation deacylative ... See more keywords
Synthesis of syn-vicinal diamines via the stereoselective allylation of acyclic chiral α-amino aldimines
Sign Up to like & getrecommendations! Published in 2019 at "Tetrahedron Letters"
DOI: 10.1016/j.tetlet.2018.12.021
Abstract: Abstract The stereoselective allylation of acyclic chiral α-amino aldimines affording vicinal diamines, mediated by various Lewis acids (TiCl4, SnCl4, MgBr2·OEt2, BF3·OEt2, ZnCl2), is described. The TiCl4-mediated allylation of an α-N-Boc aldimine afforded the allylation product… read more here.
Keywords: allylation acyclic; amino aldimines; allylation; stereoselective allylation ... See more keywords
Carbon-Carbon Bond Cleavage at Allylic Positions: Retro-allylation and Deallylation.
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DOI: 10.1021/acs.chemrev.0c00157
Abstract: The development of C-C bond-cleaving transformations is an issue in modern organic chemistry that is as challenging as it is important. Among these transformations, the retro-allylation and deallylation of allylic compounds are uniquely intriguing methods… read more here.
Keywords: allylation; bond cleavage; carbon; retro allylation ... See more keywords
Mechanistic Studies of Carbonyl Allylation Mediated by (NHC)CuH: Isoprene Insertion, Allylation, and β-Hydride Elimination.
Sign Up to like & getrecommendations! Published in 2022 at "Inorganic chemistry"
DOI: 10.1021/acs.inorgchem.2c03402
Abstract: The ability of Cu-H complexes to undergo selective insertion of unsaturated hydrocarbons under mild conditions has rendered them valuable, versatile catalysts. The direct formation of Cu allyl intermediates from unfunctionalized 1,3-dienes and transient Cu hydrides… read more here.
Keywords: carbonyl allylation; mechanistic studies; nhc cuh; allylation ... See more keywords
Arylboronic Acid Catalyzed C-Alkylation and Allylation Reactions Using Benzylic Alcohols
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DOI: 10.1021/acs.orglett.0c02736
Abstract: The arylboronic acid catalyzed dehydrative C-alkylation of 1,3-diketones and 1,3-ketoesters using secondary benzylic alcohols as the electrophile is reported, forming new C–C bonds (19 examples, up to 98% yield) with the release of water as… read more here.
Keywords: arylboronic acid; benzylic alcohols; catalyzed alkylation; acid catalyzed ... See more keywords
Direct C–H Allylation of Unactivated Alkanes by Cooperative W/Cu Photocatalysis
Sign Up to like & getrecommendations! Published in 2022 at "Organic Letters"
DOI: 10.1021/acs.orglett.2c02887
Abstract: Here we report a photocatalytic methodology that enables the direct allylation of strong aliphatic C–H bonds with simple allylic chlorides. The method relies on a cooperative interaction of two metal catalysts in which the decatungstate… read more here.
Keywords: unactivated alkanes; allylation; direct allylation; cooperative photocatalysis ... See more keywords