Compounds for generating chemiluminescence with a peroxidase
申请人:——
公开号:US20030170762A1
公开(公告)日:2003-09-11
Novel compounds comprising a C—C double bond substituted at one carbon with two sulfur atom-containing groups are disclosed. The compounds are useful in methods and compositions for generating chemiluminescence rapidly by reaction with a peroxidase enzyme and a peroxide. The chemiluminescence thus produced can be used as a detectable signal in assays for peroxidase enzymes or peroxide-producing enzymes and in assays employing enzyme-labeled specific binding pairs.
Metal-free TEMPO-catalyzed oxidative C–C bond formation from Csp3–H bonds using molecular oxygen as the oxidant
作者:Bo Zhang、Yuxin Cui、Ning Jiao
DOI:10.1039/c2cc30684k
日期:——
An efficient TEMPO-catalyzed oxidative CâC bond formation with two Csp3âH bonds using molecular oxygen as the oxidant has been developed. The novel transformation provides a new strategy for the TEMPOâO2 catalysis to construct CâC bonds. The advantages of this method include: (1) relatively mild and neutral conditions; (2) simplicity and safety of operation; (3) a stoichiometric amount of dangerous oxidants, any transition metals, additives, even solvent, is not required.
Processes and synthetic intermediates for preparing N-arylacridancarboxylic acid derivatives
申请人:——
公开号:US20010031869A1
公开(公告)日:2001-10-18
Synthetic processes and intermediates are disclosed for the preparation of N-arylacridancarboxylic acid derivatives. The derivatives are esters, thioesters, amides and sulfonimides. A key feature of the processes is the preparation of N-aryl substituted intermendiates by formation of a bond between the nitrogen atom of the acridan ring and a carbon atom of another aromatic or heteroaromatic ring compound. The arylation reaction is catalyzed by a palladium catalyst. The N-arylacridancarboxylic acid derivatives are useful in methods for producing light and in assays for peroxidase enzymes and enzyme inhibitors and in assays employing enzyme-labeled specific binding pairs.
Electrochemically Mediated S-Glycosylation of 1-Thiosugars with Xanthene Derivatives
作者:Rui-Qi Wang、Qing-Hui Jiang、Hui-Xiang Wang、Xiao-Wei Zhang、Nan Yan
DOI:10.1021/acs.orglett.3c01185
日期:2023.6.16
electrochemical dehydrogenativecross-coupling of benzylic C–H bonds with 1-thiosugars at room temperature is described. The direct S-glycosylation protocol avoids using any oxidant, which provides facile access to various glycosylated xanthene derivatives with up to 91% yield. This current electrooxidative reaction is characterized by high atom economy, high efficiency, mild reaction conditions, being