Oxidation cascade with oxone: cleavage of olefins to carboxylic acids
摘要:
A variety of olefins is shown to be cleaved oxidatively to the corresponding acids with oxone as the reagent. The simple methodology that works well for a range of alkenes, i.e., styrenes, nitrostyrenes, stilbenes, cinnamic acids, chalcones, etc., involves heating of the reactant with oxone in acetonitrile-water mixture (1:1, v/v) at reflux. The oxidation cascade involves initial dihydroxylation followed by oxidative cleavage and oxidation of the resultant aldehydes to acids. (c) 2014 Elsevier Ltd. All rights reserved.
Modular Approach to the Synthesis of Two-Dimensional Angular Fused Acenes
作者:Mikhail Feofanov、Vladimir Akhmetov、Dmitry I. Sharapa、Konstantin Amsharov
DOI:10.1021/acs.orglett.9b04382
日期:2020.3.6
Herein, we present a modular approach to pristine angularly fused planar acenes. The approach includes the Pd-catalyzed fusion of several building blocks and implements a dehydrative π-extension (DPEX) reaction as a key step enabling facile access to diverse two-dimensional acenes. The scope was demonstrated on nine examples with up to quantitative yield.
Synthesis and chemistry of enantiomerically pure 10,11-dihydrodibenzo[b,f]thiepines
作者:Paul Wyatt、Andrew Hudson、Jonathan Charmant、A. Guy Orpen、Hirihattaya Phetmung
DOI:10.1039/b516606c
日期:——
Several chiral thiepines were efficiently constructed using sulfur diimidazole in combination with a variety of bislithiated carbon fragments. The sulfur atom in these thiepines is found to be unusually unreactive compared to diphenylsulfide.
[EN] LEAVING SUBSTITUENT-CONTAINING COMPOUND, ORGANIC SEMICONDUCTOR MATERIAL FORMED THEREFROM, ORGANIC ELECTRONIC DEVICE, ORGANIC THIN-FILM TRANSISTOR AND DISPLAY DEVICE USING THE ORGANIC SEMICONDUCTOR MATERIAL, METHOD FOR PRODUCING FILM-LIKE PRODUCT, PI-<br/>[FR] COMPOSÉ CONTENANT UN SUBSTITUANT PARTANT, MATÉRIAU SEMI-CONDUCTEUR ORGANIQUE FORMÉ À PARTIR DE CE COMPOSÉ, DISPOSITIF ÉLECTRONIQUE ORGANIQUE, TRANSISTOR ORGANIQUE EN COUCHE MINCE ET DISPOSITIF D'AFFICHAGE UTILISANT LE MATÉRIAU SEMI-CONDUCTEUR ORGANIQ
申请人:RICOH CO LTD
公开号:WO2011158953A1
公开(公告)日:2011-12-22
A leaving substituent-containing compound represented by General Formula (I), wherein the leaving substituent-containing compound can be converted to a compound represented by General Formula (Ia) and a compound represented by General Formula (II), by applying energy to the leaving substituent-containing compound, in General Formulas (I), (Ia) and (II), X and Y each represent a hydrogen atom or a leaving substituent, where one of X and Y is the leaving substituent and the other is the hydrogen atom; Q2 to Q5 each represent a hydrogen atom, a halogen atom or a monovalent organic group; Q1 and Q6 each represent a hydrogen atom or a monovalent organic group other than the leaving substituent; and among the monovalent organic groups represented by Q1 to Q6, adjacent monovalent organic groups may be linked together to form a ring.