Efficient synthesis of 2-imino-1,2-dihydroquinolines and 2-imino-thiochromenes via copper-catalyzed domino reaction
作者:Sun-Liang Cui、Jing Wang、Yan-Guang Wang
DOI:10.1016/j.tet.2007.11.025
日期:2008.1
A domino approach to 2-imino-1,2-dihydroquinolines and 2-imino-thiochromenes from sulfonyl azides, alkynes, and 2-acyl anilines or the potassium salt of 2-mercapto-benzaldehyde has been developed. This one-pot method is efficient and versatile.
Silica chloride is used as a selective and effective heterogeneous catalyst for the rapid conversion of thiols to disulfides with quantitative yields in a very short period of time.
Simple and Selective Oxidation of Thiols to Disulfides with Dimethylsulfoxide Catalyzed by Dichlorodioxomolybdenum(VI)
作者:Roberto Sanz、Rafael Aguado、María R. Pedrosa、Francisco J. Arnáiz
DOI:10.1055/s-2002-28520
日期:——
Selective and quantitative conversion of thiols to disulfides was effected by dimethyl sulfoxide under mild conditions catalyzed by dichlorodioxomolybdenum(VI).
Aldehyde Capture Ligation for Synthesis of Native Peptide Bonds
作者:Monika Raj、Huabin Wu、Sarah L. Blosser、Marc A. Vittoria、Paramjit S. Arora
DOI:10.1021/jacs.5b03538
日期:2015.6.3
reactions for amide bondformation have transformed the ability to access synthetic proteins and other bioconjugates through ligation of fragments. In these ligations, amide bondformation is accelerated by transient enforcement of an intramolecular reaction between the carboxyl and the amine termini of two fragments. Building on this principle, we introduce an aldehyde capture ligation that parlays
Ascorbate mediated copper catalyzed reductive cross–coupling of disulfides with aryl iodides
作者:Marek Martinek、Michal Korf、Jiri Srogl
DOI:10.1039/c002725a
日期:——
The concept of using ascorbic acid as a mediator/ reducing agent in a Cu(I) catalyzed process is introduced and further demonstrated on a crossâcoupling reaction of aryl iodides with disulfides.