o-quinodimethanes (6) in solution. The zero-field splitting parameters, D and E, were measured in matrices of different viscosities and are analyzed in terms of a sigma-dot (σ•) scale of spin-delocalizationsubstituentconstants. Fairly good correlation with σ• was found for the D values of 32 in its minimum energy geometry. Stabilities of 32 were estimated either by measuring the temperature at which
已经制备了一系列带有八个对称对位二取代基的重氮双 (2,6-二甲基苯基) 甲烷 (1) 并光解生成相应的卡宾 (2)。产品分析研究表明,卡宾 (2) 主要通过二聚作用形成四 (芳基) 乙烯 (3) 或通过攻击邻甲基而通过邻醌二甲烷分解得到 1,2-二氢苯并环丁烯 (4)( 6) 在溶液中。零场分裂参数 D 和 E 在不同粘度的矩阵中测量,并根据自旋离域取代基常数的西格玛点 (σ•) 尺度进行分析。对于 32 的最小能量几何中的 D 值,发现与 σ• 具有相当好的相关性。通过测量解冻基质时三线态卡宾信号消失的温度或通过分析 32 在室温下脱气溶液中的衰变动力学来估计 32 的稳定性。它们根据低温下矩阵中的 D 值和术语进行检查。
[EN] 3-[(1H-PYRAZOL-4-YL)OXY]PYRAZIN-2-AMINE COMPOUNDS AS HPK1 INHIBITOR AND USE THEREOF<br/>[FR] COMPOSÉS DE 3-[(1H-PYRAZOL-4-YL)OXY]PYRAZIN-2-AMINE UTILISÉS EN TANT QU'INHIBITEUR DE HPK1 ET LEUR UTILISATION
申请人:BEIGENE LTD
公开号:WO2022068848A1
公开(公告)日:2022-04-07
Disclosed herein is 3- [ (1H-pyrazol-4-yl) oxy] pyrazin-2-amine compounds of Formula (I), or a stereoisomer thereof, or a pharmaceutically acceptable salt thereof, and pharmaceutical compositions comprising thereof. Also disclosed is a method of modulating, e.g., inhibiting or treating HPK1 related disorders or diseases including cancer by using the compound disclosed herein
Zirconocene-Mediated Macrocyclizations of Diynes Containing Di-<i>o</i>-Methylphenylene Spacers
作者:Adam D. Miller、Jennifer L. McBee、T. Don Tilley
DOI:10.1021/jo802715m
日期:2009.4.3
The diynes 3,3′,5,5′-tetramethyl-4,4′-di(pent-1-ynyl)biphenyl (4) and 3,3′′,5,5′′-tetramethyl-4,4′′-di(hex-1-ynyl)terphenyl (9) undergo coupling with Cp2Zr(η2-Me3SiC≡CSiMe3)(py) to give dimeric macrocycles in moderate yields (16% for 4 and 26% for 9).
Zwitterionic Ladder Stilbenes with Phosphonium and Borate Bridges: Intramolecular Cascade Cyclization and Structure–Photophysical Properties Relationship
The synthesis and properties of the phosphonium- and borate-bridgedstilbenes are reported. The zwitterionicladderstilbenes were synthesized by the intramolecular cascade cyclization from the phosphanyl- and boryl-substituted diphenylacetylenes 1. The study of the substituent effects of the phosphanyl and boryl groups revealed the significant dependence of the reactivity on both the nucleophilicity
[EN] PROCESS FOR THE PREPARATION OF PHENYLMALONIC ACID DINITRILES<br/>[FR] PROCÉDÉ POUR LA PRÉPARATION D'ACIDE PHENYLMALONIC DINITRILES
申请人:SYNGENTA PARTICIPATIONS AG
公开号:WO2018015489A1
公开(公告)日:2018-01-25
Process for the preparation of a compound of Formula (I), the process comprising the reaction of a compound of Formula (II) with malononitrile in the presence of a base and a palladium catalyst, Formula (II) wherein X, Y and Z, independently of each other, represent fluoro, chloro or C1-4alkyl; and L is a leaving group; with the proviso that 1 or 2 of X and Y are, independently of each other, fluoro or chloro.