Synthesis Of Biologically Active Bis(Indolyl)Methane Derivatives by Bisindole Alkylation of Tetrahydroisoquinolines with Visible‐Light Induced Ring‐Opening Fragmentation.
Sign Up to like & getrecommendations! Published in 2017 at "Asian Journal of Organic Chemistry"
DOI: 10.1002/ajoc.201600415
Abstract: A visible-light photoredox catalyzed ring-opening functionalization of tetrahydroisoquinolines with bisindole alkylation has been developed, which expedites a new vista for the synthesis of bis(indolyl)methane derivatives. The transformation comprises a series of cascade reactions, photoredox catalysis,… read more here.
Keywords: alkylation; indolyl methane; methane derivatives; bis indolyl ... See more keywords
Microwave‐Promoted Metal‐Free α‐Alkylation of Ketones with Cycloalkanes through Cross‐Coupling of C(sp3)−H Bonds
Sign Up to like & getrecommendations! Published in 2017 at "Asian Journal of Organic Chemistry"
DOI: 10.1002/ajoc.201700256
Abstract: A MWI-promoted α-alkylation of ketones by using cycloalkanes as the alkylating agents under metal-free conditions is presented. Mechanistically, this alkylation involves a TBP-initiated and MWI-assisted formation of the required cycloalkyl radical and the α-ketone carbon… read more here.
Keywords: coupling sp3; sp3 bonds; alkylation; metal free ... See more keywords
Bioorthogonal Metalloporphyrin‐Catalyzed Selective Methionine Alkylation in the Lanthipeptide Nisin
Sign Up to like & getrecommendations! Published in 2019 at "Chembiochem"
DOI: 10.1002/cbic.201800493
Abstract: Bioorthogonal catalytic modification of ribosomally synthesized and post‐translationally modified peptides (RiPPs) is a promising approach to obtaining novel antimicrobial peptides with improved properties and/or activities. Here, we present the serendipitous discovery of a selective and… read more here.
Keywords: metalloporphyrin catalyzed; bioorthogonal metalloporphyrin; catalyzed selective; lanthipeptide nisin ... See more keywords
Bifunctional Molybdenum Polyoxometalates for the Combined Hydrodeoxygenation and Alkylation of Lignin-Derived Model Phenolics.
Sign Up to like & getrecommendations! Published in 2017 at "ChemSusChem"
DOI: 10.1002/cssc.201700297
Abstract: Reductive catalytic fractionation of biomass has recently emerged as a powerful lignin extraction and depolymerization method to produce monomeric aromatic oxygenates in high yields. Here, bifunctional molybdenum-based polyoxometalates supported on titania (POM/TiO2 ) are shown… read more here.
Keywords: lignin derived; bifunctional molybdenum; alkylation; hydrodeoxygenation ... See more keywords
Ni-Catalyzed α-Alkylation of Unactivated Amides and Esters with Alcohols by Hydrogen Auto-Transfer Strategy.
Sign Up to like & getrecommendations! Published in 2018 at "ChemSusChem"
DOI: 10.1002/cssc.201801443
Abstract: A transition-metal-catalyzed borrowing hydrogen/hydrogen auto-transfer strategy allows the utilization of feedstock alcohols as an alkylating partner, which avoids the formation of stoichiometric salt waste and enables a direct and benign approach for the construction of… read more here.
Keywords: alkylation; auto transfer; hydrogen auto; transfer strategy ... See more keywords
Tungsten-Catalyzed Direct N-Alkylation of Anilines with Alcohols.
Sign Up to like & getrecommendations! Published in 2020 at "ChemSusChem"
DOI: 10.1002/cssc.202002830
Abstract: The implementation of non-noble metals mediated chemistry is a major goal in homogeneous catalysis. Borrowing hydrogen/hydrogen autotransfer (BH/HA) reaction, as a straightforward and sustainable synthetic method, has attracted considerable attention in the development of non-noble… read more here.
Keywords: alkylation anilines; catalyzed direct; alkylation; anilines alcohols ... See more keywords
Alkylation of benzene with methanol to toluene over Na3-H-Y: analysis of four aspects for obtaining reaction mechanism
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Inclusion Phenomena and Macrocyclic Chemistry"
DOI: 10.1007/s10847-020-01001-1
Abstract: Alkylation reactions was a promising technology for the preparation of chemical products such as toluene. However, the mechanism of such reactions yet remains as an unclear problem. Therefore, based on theoretical analysis, thermodynamics calculation, laboratory… read more here.
Keywords: mechanism; analysis; alkylation benzene; reaction ... See more keywords
Kinetic evidence for two different active sites on dry Amberlyst® 15 catalyst in the alkylation between 1-dodecene and p-xylene
Sign Up to like & getrecommendations! Published in 2019 at "Reaction Kinetics, Mechanisms and Catalysis"
DOI: 10.1007/s11144-019-01557-1
Abstract: On Amberlyst® 15 catalyst (dry) at 85 °C, 1-dodecene underwent concurrent double bond isomerization and alkylation with p-xylene. The alkylation reaction appeared to occur by an Eley–Rideal mechanism in which adsorbed olefin reacted with bulk phase… read more here.
Keywords: xylene; dodecene; alkylation; amberlyst catalyst ... See more keywords
Alkylation of phenol derivatives catalyzed by zeolites and zirconia based oxides
Sign Up to like & getrecommendations! Published in 2020 at "Reaction Kinetics, Mechanisms and Catalysis"
DOI: 10.1007/s11144-020-01760-5
Abstract: The heterogeneously catalyzed gas phase alkylation of m -cresol with methanol to 2,3,5-trimethylphenol, a precursor for vitamin E, on acidic zeolites and zirconium oxide-based catalysts was investigated. The influence of different acidic centers and of… read more here.
Keywords: phenol derivatives; catalyzed zeolites; derivatives catalyzed; zeolites zirconia ... See more keywords
Value-added carbohydrate building blocks by regioselective O-alkylation of C-glucosyl compounds.
Sign Up to like & getrecommendations! Published in 2019 at "Carbohydrate research"
DOI: 10.1016/j.carres.2019.03.008
Abstract: Functionalized carbohydrates and especially functionalized C-glycosides are useful intermediates for the synthesis of complex carbohydrates of interest. In this paper, we describe the synthesis of C-azidopropylglucopyranosides and give a full account of their regioselective acylation… read more here.
Keywords: alkylation glucosyl; regioselective alkylation; glucosyl compounds; carbohydrate ... See more keywords
Selective C-C bonds formation, N-alkylation and benzo[d]imidazoles synthesis by a recyclable zinc composite
Sign Up to like & getrecommendations! Published in 2021 at "Chinese Chemical Letters"
DOI: 10.1016/j.cclet.2021.06.060
Abstract: Abstract Earth abundant metals are much less expensive, promising, valuable metals and could be served as catalysts for the borrowing hydrogen reaction, dehydrogenation and heterocycles synthesis, instead of noble metals. The uniformly dispersed zinc composites… read more here.
Keywords: alkylation; benzo; bonds formation; selective bonds ... See more keywords