dihydropyrrole-functionalized phenanthridines were efficiently synthesized by the metal-free, radical cascade cyclization reaction of 2-isocyanobiphenyls with γ,δ-unsaturated oxime esters. The C–N/C–C/C–C bonds were formed via the oil bath method in a one-pot procedure with broad substrate applicability. The radical process was supported by kinetic isotope effect studies and radical inhibition studies.
Electrochemical
<scp>Palladium‐Catalyzed</scp>
Intramolecular C—H Amination of
<scp>2‐Amidobiaryls</scp>
for Synthesis of Carbazoles
作者:Qingqing Wang、Xiaojing Zhang、Pan Wang、Xinlong Gao、Heng Zhang、Aiwen Lei
DOI:10.1002/cjoc.202000407
日期:2021.1
The synthesis of carbazoles based on the electrochemical Pd‐catalyzed intramolecularC—H amination of 2‐amidobiaryls through oxidative cross coupling has been achieved under mild reaction conditions. The reaction can be carried out in undivided cell without the addition of external chemical oxidant. Besides good functional group compatibility, the desired carbazoles can be scaled up and modified easily
A novel process for making aryl propionic acids is described. It comprises reaction of a Grignard compound, obtained from an aryl bromide and magnesium, with a lithium, sodium, magnesium or calcium salt of 2-bromopropionic acid, followed by acidification.
Anti-inflammatory composition and method containing
申请人:The Boots Company Limited
公开号:US04036989A1
公开(公告)日:1977-07-19
Novel substituted aromatic hydrocarbons and ethers, and pharmaceutical compositions containing them, are described. They have pharmaceutical activity, e.g. as anti-inflammatory agents.