Iridium-Catalyzed Aryl C–H Sulfonamidation and Amide Formation Using a Bifunctional Nitrogen Source
作者:Meng Yu、Tao Zhang、Hitesh B. Jalani、Xunqing Dong、Hongjian Lu、Guigen Li
DOI:10.1021/acs.orglett.8b01977
日期:2018.8.17
A new strategy for the sequential formation of aryl and amidyl C–N bonds is reported. Using trichloroethoxysulfonyl azide as a bifunctional nitrogensource, Ir-catalyzed aryl C–H sulfonamidation and subsequent desulfonative amide formation proceed effectively without any need of oxidants or coupling reagents. This protocol is suitable for readily available benzamides and stable carboxylates including
(Meth)acrylate phosphonic esters as adhesion promoters
申请人:Craciun Liliana
公开号:US08372516B2
公开(公告)日:2013-02-12
The invention is directed to compositions on a surface which comprise a) at least a (meth)acrylate prepolymer,
b) an adhesion promoting monomer of formula (I)
wherein Q, R1, R2, R4, R5, m and n are defined herein. Further the compositions may be used to improve the adhesion to surfaces, especially metallic surfaces and may include additional optional components such as adhesion promoting photoinitiators.
Process for preparing fluorinated alkyl carboxylate esters
申请人:Andrews Allen Mark
公开号:US20070123731A1
公开(公告)日:2007-05-31
A process for preparing fluorinated alkyl carboxylate esters comprises reaction of a silver carboxylate or silver carboxylate precursor, such as silver (I) iodide with a fluorinated alkyl iodide and a carboxylic acid. Preferably the fluorinated alkyl iodide has the general formula CF
3
(CF
2
)
n
CH
2
CH
2
I, wherein n is an integer in the range of from 1 to 29 and the carboxylic acid is acetic acid, acrylic acid or methacrylic acid.
Palladium catalyzed vinylic substitution reactions with
申请人:SmithKline Beecham plc
公开号:US05646286A1
公开(公告)日:1997-07-08
This invention involves a coupling reaction involving an organo-metallic catalyst, preferably a palladium catalyst involving reacting 2-halo-3-hydroxy-6-hydroxymethylpyridine, acrylic acid or its alkali metal salt and benzyl or a phenylalkyl derivative in presence of a dipolar aprotic solvent producing none other than the expected 2-propenoate-3-benzyl or phenylalkylether-6-hydroxymethyl-pyridine product. Said products are converted into medicaments useful for treating psoriasis.