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
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.
Sign Up to like & getrecommendations! Published in 2020 at "Chemical reviews"
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
Iridium-Catalyzed Intramolecular Asymmetric Allylation of Vinyl Benzoxazinones for the Synthesis of Chiral 4H-3,1-Benzoxazines via Kinetic Resolution.
Sign Up to like & getrecommendations! Published in 2023 at "Organic letters"
DOI: 10.1021/acs.orglett.3c00148
Abstract: Chiral benzoxazinones and 4H-3,1-benzoxazines as important motifs are widely found in abundant pharmaceuticals and biological molecules. We herein successfully developed the first kinetic resolution (KR) process of racemic benzoxazinones through Ir-catalyzed asymmetric intramolecular allylation, furnishing… read more here.
Keywords: intramolecular asymmetric; catalyzed intramolecular; allylation; iridium catalyzed ... See more keywords
Rhodium-Catalyzed Enantioselective N-Allylation of Sulfoximines.
Sign Up to like & getrecommendations! Published in 2023 at "Organic letters"
DOI: 10.1021/acs.orglett.3c00414
Abstract: The N-functionalization of free sulfoximines is an important approach to modifying their chemical and biological properties for downstream applications. Here, we report a rhodium-catalyzed N-allylation of free sulfoximines (═NH) with allenes under mild conditions. The… read more here.
Keywords: allylation; rhodium catalyzed; catalyzed enantioselective; allylation sulfoximines ... See more keywords