Hydrogen borrowing: Towards aliphatic tertiary amines from lignin model compounds using a supported copper catalyst.
Sign Up to like & getrecommendations! Published in 2022 at "ChemSusChem"
DOI: 10.1002/cssc.202200868
Abstract: Upcoming biorefineries, such as lignin-first provide renewable aromatics containing unique aliphatic alcohols. In this context, a Cu-ZrO2 catalyzed hydrogen borrowing approach was established to yield tertiary amine from the lignin model monomer 3-(3,4-dimethoxyphenyl)-1-propanol and the… read more here.
Keywords: catalyst; tertiary amine; hydrogen borrowing; lignin model ... See more keywords
Hydrogen Borrowing Catalysis for the Modification, Depolymerization, and Synthesis of Polyesters
Sign Up to like & getrecommendations! Published in 2025 at "Macromolecules"
DOI: 10.1021/acs.macromol.4c03132
Abstract: : A ruthenium-catalyzed hydrogen transfer ester metathesis (HTEM) is reported that allows for the isomerization of different types of linear polyesters such as polylactones without the need for any stoichiometric reagent, forming novel types of… read more here.
Keywords: hydrogen borrowing; modification depolymerization; borrowing catalysis; catalysis modification ... See more keywords
Synthesis of 1,4-Diazacycles by Hydrogen Borrowing.
Sign Up to like & getrecommendations! Published in 2023 at "Organic letters"
DOI: 10.1021/acs.orglett.3c00468
Abstract: We report the syntheses of 1,4-diazacycles by diol-diamine coupling, uniquely made possible with a (pyridyl)phosphine-ligated ruthenium(II) catalyst (1). The reactions can exploit either two sequential N-alkylations or an intermediate tautomerization pathway to yield piperazines and… read more here.
Keywords: synthesis diazacycles; diazacycles hydrogen; hydrogen borrowing;
Manganese-Catalyzed Synthesis of Polyketones Using Hydrogen-Borrowing Approach
Sign Up to like & getrecommendations! Published in 2024 at "ACS Catalysis"
DOI: 10.1021/acscatal.4c03019
Abstract: We report here a method of making polyketones from the coupling of diketones and diols using a manganese pincer complex. The methodology allows us to access various polyketones (polyarylalkylketone) containing aryl, alkyl, and ether functionalities,… read more here.
Keywords: catalyzed synthesis; hydrogen borrowing; methodology; manganese catalyzed ... See more keywords
Hydrogen Borrowing Catalysis with Secondary Alcohols: A New Route for the Generation of β-Branched Carbonyl Compounds.
Sign Up to like & getrecommendations! Published in 2017 at "Journal of the American Chemical Society"
DOI: 10.1021/jacs.6b12840
Abstract: A hydrogen borrowing reaction employing secondary alcohols and Ph* (Me5C6) ketones to give β-branched carbonyl products is described (21 examples). This new C-C bond forming process requires low loadings of [Cp*IrCl2]2, relatively low temperatures, and… read more here.
Keywords: borrowing catalysis; hydrogen borrowing; alcohols new; catalysis secondary ... See more keywords
Functional group tolerant hydrogen borrowing C-alkylation
Sign Up to like & getrecommendations! Published in 2024 at "Nature Communications"
DOI: 10.1038/s41467-024-49249-2
Abstract: Hydrogen borrowing is an attractive and sustainable strategy for carbon–carbon bond formation that enables alcohols to be used as alkylating reagents in place of alkyl halides. However, despite intensive efforts, limited functional group tolerance is… read more here.
Keywords: group tolerant; hydrogen borrowing; functional group; hydrogen ... See more keywords