Water-Sculpting of a Heterogeneous Nanoparticle Precatalyst for Mizoroki–Heck Couplings under Aqueous Micellar Catalysis Conditions
作者:Haobo Pang、Yuting Hu、Julie Yu、Fabrice Gallou、Bruce H. Lipshutz
DOI:10.1021/jacs.0c11484
日期:2021.3.10
Powdery, spherical nanoparticles (NPs) containing ppm levels of palladium ligated by t-Bu3P, derived from FeCl3, upon simple exposure to water undergo a remarkable alteration in their morphology leading to nanorods that catalyzeMizoroki–Heck (MH) couplings. Such NP alteration is general, shown to occur with three unrelated phosphine ligand-containing NPs. Each catalyst has been studied using X-ray
粉末状球形纳米粒子 (NPs) 含有 ppm 级的钯,由来自 FeCl 3的t- Bu 3 P连接,在简单暴露于水中后,其形态发生显着变化,导致纳米棒催化 Mizoroki-Heck (MH) 偶联。这种 NP 改变是普遍的,显示发生在三个不相关的含膦配体的 NP 中。已使用 X 射线光电子能谱 (XPS)、能量色散 X 射线能谱 (EDX)、透射电子显微镜 (TEM) 和低温透射电子显微镜 (cryo-TEM) 分析研究了每种催化剂。专门依赖于含有t- Bu 3 的NPs 的联轴器P-连接的 Pd 在室温至 45 °C 之间的水性胶束催化条件下发生,并显示出广泛的底物范围。与这项新技术相关的其他关键特性包括产品中残留的 Pd 低、水性反应介质的循环利用以及相关的低 E 因子。galipinine 是汉考克生物碱家族的一员,其前体的合成暗示了潜在的工业应用。
[EN] TRIAZA-SPIRODECANONES AS DDR1 INHIBITORS<br/>[FR] TRIAZA-SPIRODÉCANONES UTILISÉES EN TANT QU'INHIBITEURS DE DDR1
申请人:HOFFMANN LA ROCHE
公开号:WO2017005583A1
公开(公告)日:2017-01-12
The present invention relates to compounds of formula (I) or pharmaceutically acceptable salts thereof, wherein L and R1 to R5 are as described herein, as well as processes for their manufacture, pharmaceutical compositions comprising them, and their use as medicaments.
Safe, Scalable, Inexpensive, and Mild Nickel‐Catalyzed Migita‐Like C−S Cross‐Couplings in Recyclable Water
作者:Tzu‐Yu Yu、Haobo Pang、Yilin Cao、Fabrice Gallou、Bruce H. Lipshutz
DOI:10.1002/anie.202013017
日期:2021.2.15
A new approach to C−Scouplings is reported that relies on nickel catalysis undermildconditions, enabled by micellar catalysis in recyclable water as the reaction medium. The protocol tolerates a wide range of heteroaromatic halides and thiols, including alkyl and heteroaryl thiols, leading to a variety of thioethers in good isolated yields. The method is scalable, results in low residual metal in
[EN] HETEROAROMATIC MACROCYCLIC ETHER CHEMOTHERAPEUTIC AGENTS<br/>[FR] AGENTS CHIMIOTHÉRAPEUTIQUES À BASE D'ÉTHER MACROCYCLIQUE HÉTÉROAROMATIQUE
申请人:NUVALENT INC
公开号:WO2021226269A1
公开(公告)日:2021-11-11
Disclosed are heterocyclic heteroaromatic macrocyclic ether compounds, pharmaceutically acceptable salts of the compounds and pharmaceutical compositions thereof. Also disclosed are methods of treating or preventing cancer using the heterocyclic heteroaromatic macrocyclic ether compounds, pharmaceutically acceptable salts of the compounds, and pharmaceutical compositions thereof.