Results 11 to 20 of about 2,581 (118)

Application of deuterated THENA for assigning the absolute configuration of chiral secondary alcohols [PDF]

open access: yes, 2019
The structure of a constrained bicyclic CDA, 1,2,3,4-tetrahydro-1,4-epoxynaphthalene-1-carboxylic acid, THENA 1, was modified by replacing both exo-methylene protons with deuterium atoms.
Thongpanchang, Chawanee   +4 more
core   +1 more source

Extreme halophilic alcohol dehydrogenase mediated highly efficient syntheses of enantiopure aromatic alcohols [PDF]

open access: yes, 2017
Enzymatic synthesis of enantiopure aromatic secondary alcohols (including substituted, heteroaromatic and bicyclic structures) were carried out using the halophilic alcohol dehydrogenase ADH2 from Haloferax volcanii (HvADH2).
Francesca Paradisi   +5 more
core   +1 more source

Efficient Aerobic Oxidation of Secondary Alcohols at Ambient Temperature with an ABNO/NOx Catalyst System

open access: yes, 2016
New highly practical methods are presented for aerobic oxidation of secondary alcohols with a nitroxyl radical in combination with HNO3, NaNO2, or both as cocatalysts. Diverse nitroxyls are compared, including several novel bicyclic derivatives. Catalyst
Shannon S. Stahl (1291731)   +1 more
core   +1 more source

Electrocatalytic Alcohol Oxidation with TEMPO and Bicyclic Nitroxyl Derivatives: Driving Force Trumps Steric Effects

open access: yes, 2015
Bicyclic nitroxyl derivatives, such as 2-aza­adamantane N-oxyl (AZADO) and 9-aza­bicyclo­[3.3.1]­nonane N-oxyl (ABNO), have emerged as highly effective alternatives to TEMPO-based catalysts for selective oxidation reactions (TEMPO = 2,2,6,6-tetra­methyl ...
Shannon S. Stahl (1291731)   +2 more
core   +1 more source

Identification of the Optimal Framework for Nitroxyl Radical/Hydroxylamine in Copper-Cocatalyzed Aerobic Alcohol Oxidation

open access: yes, 2023
8-Azabicyclo[3.2.1]octan-8-ol (ABOOL) and 7-azabicyclo[2.2.1]heptan-7-ol (ABHOL) are the main homologues of hydroxylamine 2-azaadamantan-2-ol (AZADOL) and 9-azabicyclo[3.3.1]nonan-9-ol.
Katsuhiko Sato   +17 more
core   +1 more source

Enzimas imobilizadas em crisotila e organogel: aplicação na resolução de acidos racemicos [PDF]

open access: yes, 1998
Tese (Mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas.Neste trabalho dois suportes diferentes foram avaliados para a imobilização de enzimas: o organo-gel contendo lipase de Chromobacterium viscosum (CVL), e a
Jesus, Paulo Cesar de
core  

Chiral Synthesis via Organoboranes. 48. Efficient Synthesis of Trans-Fused Bicyclic and Cyclic Ketones and Secondary Alcohols in High Optical Purities via Asymmetric Cyclic Hydroboration with Isopinocampheylchloroborane Etherate

open access: yes, 2016
Highly stereo- and enantioselective annelation has been achieved for the synthesis of trans-fused bicyclic and cyclic ketones via the asymmetric cyclic hydroboration of suitable cyclic dienes, such as 1-allyl-1-cycloalkenes or 1-vinyl-1-cycloalkenes and ...
Ulhas P. Dhokte (2986728)   +3 more
core   +1 more source

Synthesis of 3-Substituted Bicyclic Imidazo[1,2-d][1,2,4]thiadiazoles and Tricyclic Benzo[4,5]imidazo[1,2-d][1,2,4]thiadiazoles

open access: yes, 2016
A versatile synthetic route to potentially useful fused-ring [1,2,4]thiadiazole scaffolds (e.g., 7a and 10b) via exchange reactions of the precursor [1,2,4]thiadiazol-3-(2H)one derivatives (e.g., 6 and 9) with appropriately substituted nitriles (e.g ...
Craig D. Simpson (150183)   +6 more
core   +2 more sources

Oxidation of alcohols: Synthesis of bicyclic and tricyclic spiral derivatives of tetrahydrofuran

open access: yes, 1996
Tertiary alcohols with a delta-hydrogen undergo cyclization reactions when treated with silver salts and bromine in the dark to produce substituted tetrahydrofurans.
Bruck Kifle (16771554)
core   +1 more source

Intramolecular PhIO Mediated Copper-Catalyzed Aziridination of Unsaturated Sulfamates: A New Direct Access to Polysubstituted Amines from Simple Homoallylic Alcohols

open access: yes, 2016
Olefinic sulfamates derived from primary and secondary alcohols undergo intramolecular copper-catalyzed aziridination in the presence of iodosylbenzene to afford novel bicyclic fused aziridines.
Alberto Ghini (3065124)   +5 more
core   +1 more source

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