Improved Functional Group Compatibility in the Palladium-Catalyzed Synthesis of Aryl Amines
作者:Michele C. Harris、Xiaohua Huang、Stephen L. Buchwald
DOI:10.1021/ol0262688
日期:2002.8.1
use of Pd2dba3 with bulky, electron-rich ligands 1 or 2 and LiN(TMS)2 as the base for the coupling of amines with arylhalides containing hydroxyl, amide, or enolizable keto groups is described. This protocol expands the utility of palladium-catalyzed C-N bond formation by allowing for the use of arylhalides containing these functional groups, obviating the need for protecting group manipulations
[EN] HISTONE DEMETHYLASE INHIBITORS<br/>[FR] INHIBITEURS DE L'HISTONE DÉMÉTHYLASE
申请人:QUANTICEL PHARMACEUTICALS INC
公开号:WO2016044429A1
公开(公告)日:2016-03-24
The present invention relates generally to compositions and methods for treating cancer and neoplastic disease. Provided herein are substituted pyrido[3,4-d]pyrimidin-4-one derivative compounds and pharmaceutical compositions comprising said compounds. The subject compounds and compositions are useful for inhibition of histone demethylase. Furthermore, the subject compounds and compositions are useful for the treatment of cancer, such as prostate cancer, breast cancer, bladder cancer, lung cancer and/or melanoma and the like.
Cu-Catalyzed Intermolecular γ-Site C–H Amination of Cyclohexenone Derivatives: The Benefit of Bifunctional Ligands
作者:Xin Zhao、Fang Yang、Shao-Yu Zou、Qian-Qian Zhou、Zi-Sheng Chen、Kegong Ji
DOI:10.1021/acscatal.1c05439
日期:2022.2.4
Utilizing 1,10-phenanthroline-type bifunctional ligands, an efficient Cu-catalyzed intermolecular site-selective remote C–H amination using cyclohexenonederivatives and anilines was realized. The amide group installed on the bifunctional ligand played a key role in stabilizing the N-centered radical generated in situ to realize C–N-directed formation. Meanwhile, a useful catalytic system for site-selective
利用 1,10-菲咯啉型双功能配体,实现了使用环己烯酮衍生物和苯胺的高效铜催化分子间位点选择性远程 C-H 胺化。安装在双功能配体上的酰胺基团在稳定原位产生的 N 中心自由基以实现 C-N 定向形成方面发挥了关键作用。同时,建立了一个有用的催化体系,用于位点选择性分子间远程γ-C-H胺化对氨基苯酚和γ-胺化烯酮。这种使用氧气作为终端氧化剂的经济实用方法温和且环保。
Palladium/Proazaphosphatrane-Catalyzed Amination of Aryl Halides Possessing a Phenol, Alcohol, Acetanilide, Amide or an Enolizable Ketone Functional Group: Efficacy of Lithium Bis(trimethylsilyl)amide as the Base
作者:Sameer Urgaonkar、John G. Verkade
DOI:10.1002/adsc.200404005
日期:2004.5
A commercially available catalyst system comprising Pd(OAc)2 or Pd2(dba)3 and the proazaphosphatrane ancillary ligand P(i-BuNCH2CH2)3N (1) for the amination of arylhalides substituted with a phenol, alcohol, acetanilide, amide or ketone group containing an enolizable hydrogen is described. The reaction is performed in the presence of LiN(SiMe3)2 as the base. Other bases tested were either less effective
The present invention provides an industrially advantageous method of producing aminophenol compounds represented by the formula (1) by a simple and easy procedure at a high yield and a high purity. The present invention provides a method of producing an aminophenol compound represented by the formula (1): (wherein each of R
1
and R
2
, which may be the same or different, is a hydrogen atom, a substituted or unsubstituted lower alkyl group or the like; R
1
and R
2
, taken together with the adjacent nitrogen atom, may form a 5- or 6-membered heterocycle with or without other intervening heteroatoms; the heterocycle may be substituted by 1 to 3 substituents selected from the group consisting of a hydroxyl group, a substituted or unsubstituted lower alkyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted aryloxy group and the like; and the hydroxyl group in the formula (1) is substituted on the 2- or 4-position to the amino group on the phenyl ring), which comprises allowing a cyclohexanedione compound represented by the formula (2) to react with an amine compound represented by the formula (3) (wherein R
1
and R
2
are as defined above), under a neutral or basic condition.