3‐disubstituted phthalides in good to high yields at ambienttemperature. In a similar manner, 3‐hydroxyisoindolin‐1‐one and 3‐hydroxyoxindole derivatives could also be easily prepared by direct reductive coupling of phthalimides and N‐substituted isatins with activated alkenes, respectively. Application of this methodology towards the synthesis of 1‐naphthol derivatives on a gram scale is also depicted
A novel and efficient heterogeneous catalyst SiO2-tpy-Nb was developed, and its application in the preparation of N-substituted phthalimides from o-phthalic acids or anhydrides with amines provides the desired products in good to excellent yields. The catalyst was stable and recoverable for eight consecutive cycles without a significant loss in its activity. Furthermore, the catalyst is applicable
Synthesis, anti-inflammatory activity and COX-1/COX-2 inhibition of novel substituted cyclic imides. Part 1: Molecular docking study
作者:Alaa A.-M. Abdel-Aziz、Kamal E.H. ElTahir、Yousif A. Asiri
DOI:10.1016/j.ejmech.2011.02.013
日期:2011.5
A group of cyclic imides (1–13) was designed for evaluation as selective COX-2 inhibitors and investigated in vivo for their anti-inflammatory activities using carrageenan-induced rat paw edema model. Compounds 5b, 6b, 11b, 11c, 12b and 12c were proved to be potent COX-2 inhibitors with IC50 range of 0.1–1.0 μM. In vitro COX-1/COX-2 inhibition structure–activity studies identified compound 5b as a
Verfahren zur Herstellung von Polyarylensulfiden mit erniedrigter Kristallisationstemperatur
申请人:BAYER AG
公开号:EP0266662A2
公开(公告)日:1988-05-11
Die Erfindung betrifft ein Verfahren zur Herstellung von Polyarylensulfiden mit erniedrigter Kristallisationstemperatur.
本发明涉及一种结晶温度较低的聚芳基硫化物生产工艺。
Photoredox-catalyzed radical–radical cross coupling of ketyl radicals with unstabilized primary alkyl radicals
作者:Shishen Feng、Hong Liu、Yan Li、Yewen Fang
DOI:10.1039/d4cc00620h
日期:2024.4.18
sterically hindered alcohols has been successfully developed via radical–radical coupling reactions enabled by mild and redox-neutral photocatalysis. With alkylsilicates as the radical precursors, a range of primaryalkylradicals bearing various functional groups could couple with a range of phthalimides and activated ketones.