Palladium-Catalyzed Dehydroarylation of Triarylmethanols and Their Coupling with Unsaturated Compounds Accompanied by C−C Bond Cleavage
摘要:
Triarylmethanols are effectively dehydroarylated and reacted with some unsaturated compounds by using an appropriate palladium catalyst system such as Pd(OAc)(2)-P(1-Nap)(3) (1-Nap = 1-naphthyl) to give the corresponding arenes and hydroarylation products, respectively, along with diaryl ketones.
Direct CHamidation of arylphosphoryl compounds has been developed by using an IrIII catalyst system under mild conditions. A wide range of substrates could be employed with high functional‐group tolerance. This procedure was successfully applied for the first time to the asymmetric reaction giving rise to a P‐chirogenic center with a high diastereomeric ratio of up to 19:1 (90 % de).
Palladium‐Catalyzed Silacyclization of (Hetero)Arenes with a Tetrasilane Reagent through Twofold C−H Activation
作者:Dingyi Wang、Mingjie Li、Xiangyang Chen、Minyan Wang、Yong Liang、Yue Zhao、Kendall N. Houk、Zhuangzhi Shi
DOI:10.1002/anie.202015117
日期:2021.3.22
The use of an operationally convenient and stable silicon reagent (octamethyl‐1,4‐dioxacyclohexasilane, ODCS) for the selective silacyclization of (hetero)arenes via twofold C−Hactivation is reported. This method is compatible with N‐containing heteroarenes such as indoles and carbazoles of varying complexity. The ODCS reagent can also be utilized for silacyclization of other types of substrates,
[EN] COMPOUNDS USEFUL AS CSF1 MODULATORS<br/>[FR] COMPOSÉS UTILES EN TANT QUE MODULATEURS DU FACTEUR 1 DE STIMULATION DE COLONIES
申请人:REDX PHARMA PLC
公开号:WO2016051193A1
公开(公告)日:2016-04-07
This invention relates to novel compounds and to pharmaceutical compositions comprising the novel compounds. More specifically, the invention relates to compounds useful as Colony Stimulating Factor 1 Receptor (cFMS) modulators (e.g. cFMS inhibitors). This invention also relates to processes for preparing the compounds, uses of the compounds in treatment and methods of treatment employing the compounds. Specifically, the invention relates to the use of the compounds for the treatment of cancer and autoimmune diseases.
Single component cationic palladium proinitiators for the latent polymerization of cycloolefins
申请人:Bell Andrew
公开号:US20050187398A1
公开(公告)日:2005-08-25
Palladium compound compositions are provided in accordance with Formulae [((R)
3
E)
a
Pd(Q)(LB)
b
]
p
[WCA]
r
, where ((R)
3
E) is a Group 15 electron donor ligand, Q is an anionic ligand, LB is a Lewis base, WCA is a weakly coordinating anion, a is 1, 2 or 3, b is 0, 1 or 2, the sum of a and b is 1, 2 or 3 and each of p and r is an integer such that the molecular charge is zero, or [(E(R)
3
)(E(R)
2
R*)Pd(LB)]
p
[WCA]
r
where E(R)
2
R* represents a Group 15 neutral electron donor ligand and where R* is an anionic hydrocarbyl containing moiety, bonded to the Pd and having a β hydrogen with respect to the Pd center. Such compound composition exhibits latent polymerization activity in the presence of polycyclic olefins.
INHIBITORS OF KEAP1-Nrf2 PROTEIN-PROTEIN INTERACTION
申请人:Janssen Pharmaceutica NV
公开号:US20200055874A1
公开(公告)日:2020-02-20
Sultam compounds, pharmaceutical compositions containing them, methods of making them, and methods of using them including methods for treating disease states, disorders, and conditions associated with the KEAP1-Nrf2 interaction, such as inflammatory bowel disease, including Crohn's disease and ulcerative colitis.