Acylation of Aryl Halides and α-Bromo Acetates with Aldehydes Enabled by Nickel/TBADT Cocatalysis
摘要:
In this protocol aryl halides and alpha-bromo acetates are efficiently cross-coupled with an array of (hetero)aromatic and aliphatic aldehydes under the cooperative catalysis of nickel and tetrabutylammonium decatungstate as a hydrogen-atom-transfer photocatalyst. This method provides a concise approach to a variety of ketones with high compatibility of various functional groups.
Transformations of Aryl Ketones via Ligand‐Promoted C−C Bond Activation
作者:Hanyuan Li、Biao Ma、Qi‐Sheng Liu、Mei‐Ling Wang、Zhen‐Yu Wang、Hui Xu、Ling‐Jun Li、Xing Wang、Hui‐Xiong Dai
DOI:10.1002/anie.202006740
日期:2020.8.17
The coupling of aromatic electrophiles (aryl halides, aryl ethers, aryl acids, aryl nitriles etc.) with nucleophiles is a core methodology for the synthesis of aryl compounds. Transformations of arylketones in an analogous manner via carbon–carbon bond activation could greatly expand the toolbox for the synthesis of aryl compounds due to the abundance of arylketones. An exploratory study of this
Arylketones as Aryl Donors in Palladium-Catalyzed Suzuki–Miyaura Couplings
作者:Zhen-Yu Wang、Biao Ma、Hui Xu、Xing Wang、Xu Zhang、Hui-Xiong Dai
DOI:10.1021/acs.orglett.1c03048
日期:2021.11.5
Herein, we report the arylation, alkylation, and alkenylation of aryl ketones via a palladium-catalyzed Suzuki–Miyaura cross-coupling reaction. The use of the pyridine-oxazoline ligand is the key to the cleavage of the unstrained C–C bond. The late-stage arylation of aryl ketones derived from drugs and natural products demonstrated the synthetic utility of this protocol.
Qunolyloxazole-2-ones useful as proteinkinase C inhibitors
申请人:Merrell Dow Pharmaceuticals
公开号:US04886811A1
公开(公告)日:1989-12-12
This invention relates to novel quinolyloxazole-2-ones which are useful as protein kinase C inhibitors, effective in the treatment of hypertension and asthma. This invention also includes a novel procedure for producing an intermediate ketone compound involving the reaction of a bromo-quinoline compound with butyl lithium and further reacting the lithiated compound with N-methyl-N-methoxyalkanamide.
The present description relates to compounds and forms and pharmaceutical compositions thereof and methods for use thereof to treat or ameliorate bacterial infections caused by wild-type and multi-drug resistant Gram-negative and Gram-positive pathogens.
Use of quinolyl-and isoquinolyloxanole-2-ones for the production of a medicament for the treatment of multi-drug resistant tumors
申请人:MERRELL DOW PHARMACEUTICALS INC.
公开号:EP0428107A2
公开(公告)日:1991-05-22
This invention relates to quinolyloxazole-2-ones which are useful in the treatment of multi-drug resistant tumors. The quinolyloxazole-2-ones act to prevent drug resistance and thus allow conventional chemotherapeutic agents to kill tumor cells as if drug resistance were not present.