Synthesis of Azobenzenes Using <i>N</i>-Chlorosuccinimide and 1,8-Diazabicyclo[5.4.0]undec-7-ene (DBU)
作者:Alford Antoine John、Qing Lin
DOI:10.1021/acs.joc.7b01530
日期:2017.9.15
A convenient method for the synthesis of symmetrical azobenzenes is reported. This one-step procedure involves treatment of anilines with N-chlorosuccinimide (NCS) and organic base 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU). A wide range of commercially available substituted anilines readily participate in this reaction to produce the corresponding azobenzenes in moderate-to-excellent yields in minutes
unsymmetric aromatic azocompounds through an efficient and cross-selective oxidative dimerization of aromatic amines using tert-butyl hypoiodite (t-BuOI) under metal-free and mild conditions has been developed. This method was also found applicable to the synthesis of heteroaromatic azocompounds. The spectroscopic study indicates the involvement of N,N-diiodoanilines in the oxidative reaction as the key
[EN] GLP-1R MODULATING COMPOUNDS<br/>[FR] COMPOSÉS MODULATEURS DE GLP-1R
申请人:GILEAD SCIENCES INC
公开号:WO2021081207A1
公开(公告)日:2021-04-29
The present disclosure provides GLP-1R agonists, and compositions, methods, and kits thereof. Such compounds are generally useful for treating a GLP-1R mediated disease or condition in a human.
Active Ester Functionalized Azobenzenes as Versatile Building Blocks
作者:Sven Schultzke、Melanie Walther、Anne Staubitz
DOI:10.3390/molecules26133916
日期:——
conditions for the introduction of NHS esters to azobenzenes and diazocines has been established. Yields were consistently high with very few exceptions. The NHS functionalized azobenzenes react with primary amines quantitatively. These amines are ubiquitous in biological systems and in material science.
Water-Promoted Chlorination of 2-Mercaptobenzothiazoles
作者:Laurin Wimmer、Michael Parmentier、Bernard Riss、Tobias Kapferer、Chao Ye、Lei Li、Hongyong Kim、Jialiang Li
DOI:10.1055/s-0036-1591553
日期:2018.5
Substituted benzothiazoles play an important role in medicinal chemistry due to their pharmacological properties. Their 2-substituted derivatives are often prepared from 2-chlorobenzothiazoles, which in turn can be synthesized from the 2-mercapto precursor using sulfuryl chloride. In practice, this seemingly straightforward and widely used reaction can be impeded by poor reproducibility and low reaction yields