对位取代的1-氯-3-苯基重氮(5)是N,N,N'-三氯苯甲m(10)与过量溴离子反应的推定中间体,进一步反应生成3-溴-(4)和3-氯-3-苯基重氮(6)。该6:4的比率用哈米特σ负相关p和σ p +的常数p -取代基。4的形成,建议通过反S N进行2'机理主要是吸电子的p-取代基。化合物6是具有给电子性p取代基的主要产物,它可以由5通过极性过渡结构12进行氯的[1,3]-σ位移而从5中产生。气相DFT(B3LYP / 6-31 + G *)对这两种机理的研究结果与实验一致。
The reactions of a variety of N-haloamidines with silver oxide, sodium ethoxide, thiourea derivatives, and phenols are described. In these reactions, N-phenyl-N′-chlorobenzamidine gave diphenylcarbodiimide, benzimidazole, N-amidinobenzamidine and 2,4-diphenylthiadiazole respectively, while the other N-haloamidines afforded the corresponding products. The mechanistic implications of these reactions are discussed.
[EN] NOVEL IMMUNE SYSTEM MODULATORS<br/>[FR] NOUVEAUX MODULATEURS DU SYSTÈME IMMUNITAIRE
申请人:JANUS BIOTHERAPEUTICS INC
公开号:WO2012167046A1
公开(公告)日:2012-12-06
The present invention relates to a compound of Formula I: or a pharmaceutically acceptable salt thereof, wherein the symbols are as defined in the specification; a pharmaceutical composition comprising the same; and a method for treating or preventing autoimmunity disease using the same.
MATERIAL FOR ORGANIC ELECTROLUMINESCENCE DEVICES AND ORGANIC ELECTROLUMINESCENCE DEVICE USING THE MATERIAL
申请人:IWAKUMA Toshihiro
公开号:US20120319099A1
公开(公告)日:2012-12-20
A material for organic electroluminescence devices comprising a compound in which a heterocyclic group having nitrogen is bonded to an arylcarbazolyl group or a carbazolylalkylene group and an organic electroluminescence device comprising an anode, a cathode and an organic thin film layer comprising at least one layer and disposed between the anode and the cathode, wherein at least one layer in the organic thin film layer comprises the material for organic electroluminescence devices described above. The material can provide an organic electro-luminescence device emitting bluish light with a high purity of color. The organic electroluminescence device uses the material.
Synthesis of Highly Substituted Cyclobutanones by a One‐Pot Keteniminium‐Enamine Process
作者:Dylan Dagoneau、Amandine Kolleth、Pierre Quinodoz、Beyza Horoz、Saron Catak、Alexandre Lumbroso、Sarah Sulzer‐Mossé、Alain De Mesmaeker
DOI:10.1002/hlca.202100022
日期:2021.5
synthesis of highly substitutedcyclobutanones. This process relies on first a [2+2] cycloaddition involving a keteniminium salt intermediate with an alkene followed by isomerization of the resulting cyclobutaniminium salt into its cyclic enamine form and then reaction of the latter with an electrophile. The adduct can be either hydrolyzed or reduced to give the corresponding cyclobutanone or cyclobutanamine