Method of preparing acyloxybenzenesulfonic acids and salts thereof
申请人:ETHYL CORPORATION
公开号:EP0165480A1
公开(公告)日:1985-12-27
Alkali metal salts and alkaline earth metal salts of' acyloxybenzenesulfonate are prepared by sulfonating an aryl ester of an organic acid with gaseous sulfur trioxide to produce a sulfonation reaction mixture containing acyloxybenzenesulfonic acid, neutralizing the sulfonation reaction mixture with alkali metal hydroxide or alkaline earth metal hydroxide to produce an alkali metal salt or alkaline earth metal salt of an acyloxybenzenesulfonic acid and thereafter recovering from the reaction mixture the acyloxybenzenesulfonic acid salt product thus formed.
[EN] QUINUCLIDINE DERIVATIVES AS MUSCARINIC M3 RECEPTOR ANTAGONISTS<br/>[FR] DÉRIVÉS DE QUINUCLIDINE UTILISÉS COMME ANTAGONISTES DES RÉCEPTEURS MUSCARINIQUES M3
申请人:ASTRAZENECA AB
公开号:WO2009138707A1
公开(公告)日:2009-11-19
The invention provides named compounds of formula (I ), wherein R4 is a N- sustituted quinuclidine ( I ) pharmaceutical compositions containing them and a process for preparing the pharmaceutical compositions. Their use in therapy for' the treatment of conditions mediated by M3 muscarinic receptors, such as chronic obstructive pulmonary disease is also disclosed.
Direct C–C Bond Formation from Alkanes Using Ni-Photoredox Catalysis
作者:Laura K. G. Ackerman、Jesus I. Martinez Alvarado、Abigail G. Doyle
DOI:10.1021/jacs.8b09191
日期:2018.10.31
C(sp3)-H bonds and chloroformates has been accomplished via nickel and photoredox catalysis. A diverse range of feedstock chemicals, such as (a)cyclic alkanes and toluenes, along with late-stage intermediates, undergo intermolecular C-C bond formation to afford esters under mild conditions using only 3 equiv of the C-H partner. Site selectivity is predictable according to bond strength and polarity