husk ash, and identified using a variety of techniques. The obtained nanocomposite (RHA/TiO2) was used as a green and inexpensive catalyst for the promotion of the acetylation of alcohols, phenols and amines with Ac2O at room temperature under solvent free conditions. The procedure gave the products in excellent yields during all reaction times. Also this catalyst can be reused for several times without
[EN] CYCLOALKYLNITRILE PYRAZOLE CARBOXAMIDES AS JANUS KINASE INHIBITORS<br/>[FR] CYCLOALKYLNITRILE PYRAZOLE CARBOXAMIDES EN TANT QU'INHIBITEURS DE JANUS KINASE
申请人:MERCK SHARP & DOHME
公开号:WO2013040863A1
公开(公告)日:2013-03-28
Cycloalkylnitrile pyrazole carboxamides as JAK inhibitors useful for the treatment of JAK-mediated diseases such as rheumatoid arthritis, asthma, COPD and cancer are provided.
Synthesis and Characterization of Monoisomeric 1,8,15,22-Substituted (A<sub>3</sub>B and A<sub>2</sub>B<sub>2</sub>) Phthalocyanines and Phthalocyanine−Fullerene Dyads
Synthesis and characterization of three phthalocyanine−fullerene (Pc-C60) dyads, corresponding monoisomeric phthalocyanines (Pc), and buildingblocks, phthalonitriles, are described. Six novel bisaryl phthalonitriles were prepared by the Suzuki−Miyaura coupling reaction from trifluoromethanesulfonic acid 2,3-dicyanophenyl ester and various oxaborolanes. Two phthalonitriles were selected for the synthesis
描述了三种酞菁-富勒烯(Pc -C 60)二元化合物,相应的单体异构体酞菁(Pc)和结构单元邻苯二甲腈的合成和表征。通过Suzuki-Miyaura偶联反应,由三氟甲磺酸2,3-二氰基苯基酯和各种氧杂硼烷制备了六种新颖的双芳基邻苯二甲腈。选择两种邻苯二甲腈用于合成A 3 B-型和A 2 B 2-型酞菁。邻苯二甲腈4具有庞大的3,5-二-叔-在邻苯二甲酸位置的丁基丁基取代基,仅迫使一种区域异构体形成并大大提高了酞菁的溶解度。邻苯二甲腈8在α位具有3-苯基丙醇侧链,使得可以进一步修饰侧基。合成的单体异构体A 3 B和A 2 B 2型酞菁通过丙二酸残基的连接而被修饰。最后,富勒烯通过一个或两个丙二酸桥与酞菁共价连接,生成Pc -C 60二元组。由于酞菁类化合物的异构体结构和增加的溶解度,化合物的NMR光谱质量得到了显着提高,从而使详细的NMR分析成为可能。合成的二元化合物具有不同的酞菁和富勒烯取
Bu4NI-Catalyzed C–C Bond Cleavage and Oxidative Esterification of Allyl Alcohols with Toluene Derivatives
作者:Yaoyao Chen、Chengliang Li、Yongmei Cui、Mingming Sun、Xueshun Jia、Jian Li
DOI:10.1055/s-0039-1690105
日期:2019.10
groups for further functionalization and enriches the reactivity profile of allyl alcohol and toluene derivatives. In addition, this protocol represents a new transformation of allyl alcohol involving C–C bond cleavage and C–O bond forming. A novel oxidative esterification of 1-arylprop-2-en-1-ols with toluene derivatives catalyzed by tetrabutylammonium iodide (TBAI) is reported. The optimization of