报道了一种用于活化的亚甲基物质的芳基化的通用的新氧化方法。在温和的反应条件下(室温至40°C),Cu(OTf)2介导功能化的芳基硼物种与各种稳定的sp 3-亲核试剂的选择性偶联。丙二酸叔丁酯和酰胺基酯可用作底物以生成四元中心。作为传统交叉偶联或S N Ar方案的补充,在卤素亲电试剂(包括芳基溴化物和碘化物)存在下,该转化过程具有化学选择性。带有酰胺基,磺酰基基和膦酰基基团的底物不适合在温和的Hurtley型条件下偶联,是合适的反应伙伴。
OXIDATIVE COUPLING OF ARYL BORON REAGENTS WITH SP3-CARBON NUCLEOPHILES, AND AMBIENT DECARBOXYLATIVE ARYLATION OF MALONATE HALF-ESTERS VIA OXIDATIVE CATALYSIS
申请人:The Governors of the University of Alberta
公开号:US20180186721A1
公开(公告)日:2018-07-05
Described herein are methods of oxidative coupling of aryl boron reagents with sp
3
-carbon nucleophiles, and ambient decarboxylative arylation of malonate half-esters via oxidative catalysis.
An Improved Protocol for the Preparation of 3-Pyridyl- and Some Arylboronic Acids
作者:Wenjie Li、Dorian P. Nelson、Mark S. Jensen、R. Scott Hoerrner、Dongwei Cai、Robert D. Larsen、Paul J. Reider
DOI:10.1021/jo025792p
日期:2002.7.1
yield and bulk quantity from 3-bromopyridine via a protocol of lithium-halogen exchange and "in situ quench". This technique was further studied and evaluated on other aryl halides in the preparation of arylboronic acids.
[EN] INHIBITORS OF HISTONE DEACETYLASE<br/>[FR] INHIBITEURS D'HISTONE DÉSACÉTYLASE
申请人:METHYLGENE INC
公开号:WO2005092899A1
公开(公告)日:2005-10-06
The invention relates to a series of compounds useful for inhibiting histone deacetylase (HDAC) enzymatic activity. The invention also provides a method for inhibiting histone descetylase in a cell using said compounds as well as a method for treating cell proliferative diseases and conditions using said HDAC inhibitors. Further, the invention provides pharmaceutical compositions comprising the HDAC inhibiting compounds and a pharmaceutically acceptable carrier.
General Suzuki Coupling of Heteroaryl Bromides by Using Tri-<i>tert</i>-butylphosphine as a Supporting Ligand
作者:Yinjun Zou、Guizhou Yue、Jianwei Xu、Jianrong Steve Zhou
DOI:10.1002/ejoc.201402915
日期:2014.9
A general procedure for the fast Suzuki coupling of major families of heteroaryl bromides was realized by using Pd(OAc)2/PtBu3 as the catalyst. Many couplings were finished within minutes at room temperature in n-butanol. Different from previous studies, three typical heteroaryl bromides were systematically examined in couplings of various heteroaryl and aryl boronic acids.
Generation of 3-Pyridyl Biaryl Systems via Palladium-Catalyzed Suzuki Cross-Couplings of Aryl Halides with 3-Pyridylboroxin
作者:Christopher L. Cioffi、William T. Spencer、Justin J. Richards、R. Jason Herr
DOI:10.1021/jo034664d
日期:2004.3.1
The synthesis of 3-pyridyl biaryl systems can be readily achieved by means of palladium-catalyzedSuzukicross-coupling reactions between aryl halides and 3-pyridylboroxin. A series of cross-couplings were conducted in order to investigate the scope and limitations of this protocol.