Chemoselective, iron(ii)-catalyzed oxidation of a variety of secondary alcohols over primary alcohols utilizing H2O2 as the oxidant
作者:Matthew Lenze、Eike B. Bauer
DOI:10.1039/c3cc41131a
日期:——
A mild, iron-based catalyst system is presented that selectively oxidizes secondary alcohols to the corresponding hydroxy ketones in the presence of primary alcohols within 15 minutes at room temperature, utilizing H2O2 as the oxidant.
The present disclosure is generally directed to antiviral compounds, and more specifically directed to combinations of compounds which can inhibit the function of the NS5A protein encoded by Hepatitis C virus (HCV), compositions comprising such combinations, and methods for inhibiting the function of the NS5A protein.
Aerobic Oxidation of Secondary Alcohols with Nitric Acid and Iron(III) Chloride as Catalysts in Fluorinated Alcohol
作者:Štefan Možina、Jernej Iskra
DOI:10.1021/acs.joc.9b02109
日期:2019.11.15
being weak acceptors. We used 1,1,1,3,3,3-hexafluoro-2-propanol (HFIP) as the activating solvent for a nitric acid and FeCl3-catalyzed aerobic oxidation of secondary alcohols to ketones. Reaction proceeded selectively with excellent yields with no reaction on the primary alcohol group. Oxidation of benzyl alcohols proceeds selectively to aldehydes with only HNO3 as the catalyst, while reaction on tertiary
Described are RORγ modulators of the formula (I),
or stereoisomers, tautomers, pharmaceutically acceptable salts, solvates, or prodrugs thereof, wherein all substituents are defined herein. Also provided are pharmaceutical compositions comprising the same. Such compounds and compositions are useful in methods for modulating RORγ activity in a cell and methods for treating a subject suffering from a disease or disorder in which the subject would therapeutically benefit from modulation of RORγ activity, for example, autoimmune and/or inflammatory disorders.
Manganese-Catalyzed Selective Oxidation of Aliphatic CH groups and Secondary Alcohols to Ketones with Hydrogen Peroxide
作者:Jia Jia Dong、Duenpen Unjaroen、Francesco Mecozzi、Emma C. Harvey、Pattama Saisaha、Dirk Pijper、Johannes W. de Boer、Paul Alsters、Ben L. Feringa、Wesley R. Browne
DOI:10.1002/cssc.201300378
日期:2013.9
An efficient and simple method for selective oxidation of secondaryalcohols and oxidation of alkanes to ketones is reported. An in situ prepared catalyst is employed based on manganese(II) salts, pyridine‐2‐carboxylic acid, and butanedione, which provides good‐to‐excellent conversions and yields with high turnover numbers (up to 10 000) with H2O2 as oxidant at ambient temperatures. In substrates bearing
报道了一种有效和简单的方法,用于选择性氧化仲醇和将烷烃氧化成酮。使用基于锰(II)盐,吡啶-2-羧酸和丁二酮的原位制备的催化剂,该催化剂在H 2 O 2的转化率高(高达10000)时,具有良好的转化率和高收率。在环境温度下用作氧化剂。在带有多个醇基团底物,仲醇被转化成酮选择性,并且在一般情况下,苄基Ç ħ氧化进行优先于脂肪族的C ħ氧化。