Efficient nucleophilic substitution reactions of pyrimidyl and pyrazyl halides with nucleophiles under focused microwave irradiation
摘要:
Rapid nucleophilic displacement reactions of 2-chloropyrimidine, 2-bromopyrimidine, 5-bromopyrimidine and chloropyrazine with nucleophiles under microwave irradiation was complete within several minutes with yields up to 99%. The method using microwave irradiation is superior to the classical heating processes. (C) 2002 Elsevier Science Ltd. All rights reserved.
Cu-Catalyzed Arylation of Phenols: Synthesis of Sterically Hindered and Heteroaryl Diaryl Ethers
作者:Debabrata Maiti、Stephen L. Buchwald
DOI:10.1021/jo9026935
日期:2010.3.5
Cu-catalyzed O-arylation of phenols with aryl iodides and bromides can be performed under mild condition in DMSO/K3PO4 with use of picolinic acid as the ligand for copper. This method tolerates a variety of functional groups and is effective in the synthesis of hindereddiaryl ethers and heteroaryl ethers.
铜催化苯酚与芳基碘化物和溴化物的 O-芳基化反应可以在温和条件下在 DMSO/K 3 PO 4 中进行,使用吡啶甲酸作为铜的配体。该方法耐受多种官能团,在受阻二芳基醚和杂芳基醚的合成中有效。
Ullmann diaryl ether synthesis catalyzed by copper (I)/pyridine-functionalized silane
作者:Baohua Zhang、Lanxiang Shi、Ruixia Guo、Sijie Liu
DOI:10.1080/10426507.2015.1119135
日期:2016.6.2
GRAPHICAL ABSTRACT ABSTRACT Ullmann-type diarylethersynthesis was performed under mild conditions in DMF/K2CO3 using a pyridine-functionalized silane as a ligand. The products were obtained in good yields. This method tolerates a variety of functional groups and is effective in the synthesis of hindered diarylethers and heteroaryl ethers.
A New Biarylphosphine Ligand for the Pd-Catalyzed Synthesis of Diaryl Ethers under Mild Conditions
作者:Luca Salvi、Nicole R. Davis、Siraj Z. Ali、Stephen L. Buchwald
DOI:10.1021/ol202955h
日期:2012.1.6
A new bulky biarylphosphine ligand (L8) has been developed that allows the Pd-catalyzed C–O cross-coupling of a wide range of aryl halides and phenols undermilderconditions than previously possible. A direct correlation between the size of the ligand substituents in the 2′, 4′, and 6′ positions of the nonphosphine containing ring and the reactivity of the derived catalyst system was observed. Specifically
Preparation of carbon nanotube-supported α-Fe2O3@CuO nanocomposite: a highly efficient and magnetically separable catalyst in cross-coupling of aryl halides with phenols
(SEM) and Transmission electron microscopy (TEM) corroborated the structure of the catalyst. The catalyst synthesized showed good activity in C–O crosscouplingreactions affording the highest rate of completion. Magnetic feature of the catalyst helped facile separation of it from the reaction medium. The catalyst could also be reused up to six times without any loss of its activity.
[EN] DIAZASPIROBICYLIC COMPOUNDS AS PROTEIN-PROTEIN INTERACTION INHIBITORS AND APPLICATIONS THEREOF<br/>[FR] COMPOSÉS DIAZASPIROCYCLIQUES EN TANT QU'INHIBITEURS D'INTERACTION PROTÉINE-PROTÉINE ET LEURS APPLICATIONS
申请人:ACERAND THERAPEUTICS HONG KONG LTD
公开号:WO2022257047A1
公开(公告)日:2022-12-15
The present disclosure provides diazaspirobicylic compounds as protein-protein interaction inhibitors and applications thereof. Specifically, the present disclosure provides a compound of formula I or pharmaceutically acceptable salts or stereoisomers or racemates thereof.