Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Tom, Luong"'
Publikováno v:
The Journal of Organic Chemistry. 81:8585-8594
Osmium(0) complexes derived from Os3(CO)12 and XPhos (2-dicyclohexylphosphino-2′,4′,6′-triisopropylbiphenyl) catalyze the C–C coupling of α-hydroxy esters 1a–1i, α-ketols 1j–1o, or 1,2-diols dihydro-1j–1o with ethylene 2a to form ethy
Publikováno v:
Organic Letters. 19:966-968
Upon exposure to a ruthenium(0) catalyst, N-benzyl 3-hydroxy-2-oxindoles react with diverse alkynes to form products of C-H vinylation with complete control of regioselectivity and olefin geometry. This method contributes to a growing body of catalyt
Publikováno v:
Angewandte Chemie. 127:5555-5559
Ruthenium(II) complexes catalyze the CC coupling of 1,1-disubstituted allenes and fluorinated alcohols to form homoallylic alcohols bearing all-carbon quaternary centers with good to complete levels of diastereoselectivity. Whereas fluorinated alcoho
Publikováno v:
Journal of the American Chemical Society. 139(24)
Using an iridium catalyst modified by PhanePhos, CF3-allenes react with methanol to form branched products of hydrohydroxymethylation as single regioisomers with excellent levels of enantiomeric enrichment. This hydrogen auto-transfer process enables
Autor:
Boyoung Y. Park, Khoa D. Nguyen, Tom Luong, Victoria J. Garza, Michael J. Krische, Hiroki Sato
BACKGROUND Since the discovery of the Grignard reaction more than a century ago, carbonyl addition mediated by premetalated reagents has played a central role in synthetic chemistry. Metal-catalyzed reductive coupling of π-unsaturated reactants with
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::82698c7b15bddc2e4cf896f49a30430a
https://europepmc.org/articles/PMC5130112/
https://europepmc.org/articles/PMC5130112/
Publikováno v:
ChemInform. 46
A strategy for catalytic vinyl transfer from enol carboxylates to activated secondary alcohol C–H bonds is described. Using XPhos-modified ruthenium(0) or osmium(0) complexes, enol carboxylate–carbonyl oxidative coupling forms transient β-acylox
Publikováno v:
ChemInform. 46
The coupling of allenes and fluorinated alcohols provides homoallylic alcohols with high levels of diastereoselectivity.
A strategy for catalytic vinyl transfer from enol carboxylates to activated secondary alcohol C–H bonds is described. Using XPhos-modified ruthenium(0) or osmium(0) complexes, enol carboxylate–carbonyl oxidative coupling forms transient β-acylox
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5e94896d48f76e6e62508bab40c5b7c1
https://europepmc.org/articles/PMC4481174/
https://europepmc.org/articles/PMC4481174/
Publikováno v:
Organic Letters. 14:3233-3235
A Pd-catalyzed reaction of vinyl iodides and N-tosylhydrazones that assembles η(3)-allyl ligands through carbene insertion is demonstrated. Intramolecular trapping with nitrogen nucleophiles generates good yields of cinnamyl and pentadienyl amines l
Publikováno v:
ChemInform. 45
This is the first example of a metal-catalyzed hydrohydroxyalkylation of unactivated olefins.