Nickel-Catalyzed Intermolecular Insertion of Aryl Iodides to Nitriles: A Novel Method to Synthesize Arylketones
摘要:
A novel procedure for the NiCl2(DME)/dppp/Zn system catalyzed intermolecular insertion of aryl iodides to nitriles was developed, which afforded variously substituted arylketone derivatives in moderate to good yields with tolerance of a wide variety of functional groups.
Certain isoquinoline derivatives having anti-tumor properties
申请人:Laboratoires Glaxo SA
公开号:US05663179A1
公开(公告)日:1997-09-02
Compounds are described of general formula (I) ##STR1## and salts and solvates thereof, including physiologically acceptable salts and solvates thereof, in which: Z represents either Het, ##STR2## Het represents an optionally substituted bicyclic or tricyclic ring selected from acricine isoquinolin-1-yl, isoquinolin-3-yl, The novel compounds of formula (I) can sensitize multi-drug resistant cancer cells to chemotherapeutic agents and may be formulated for use in therapy, particularly to improve or increase the efficacy of an anti-tumour drug.
Cobalt-Catalyzed Enantioselective Hydrogenation of Diaryl Ketones with Ferrocene-Based Secondary Phosphine Oxide Ligands
作者:Liyao Zeng、Menglong Zhao、Bijin Lin、Jingyuan Song、James H. R. Tucker、Jialin Wen、Xumu Zhang
DOI:10.1021/acs.orglett.3c02530
日期:2023.8.25
A new class of cobalt catalytic system for asymmetric hydrogenation of ketones was herein reported, involving the development of novel ferrocene-based secondary phosphine oxide ligands. An unusual P–O bidentate coordination pattern with cobalt was confirmed by an X-ray diffraction study. The bichelating tetrahedral cobalt(II) complexes afforded high reactivities (up to 99% yield) and good to excellent