[EN] ARYLNAPHTHALENE LACTONE DERIVATIVES AND METHODS OF MAKING AND USING THEREOF<br/>[FR] DÉRIVÉS ARYLNAPHTALÈNE LACTONE ET PROCÉDÉS DE PRODUCTION ET D'UTILISATION DE CES COMPOSÉS
申请人:OHIO STATE INNOVATION FOUNDATION
公开号:WO2015153653A1
公开(公告)日:2015-10-08
A series of natural products including phyllanthusum, an arylnaphthalene lignan derivative, with anticancer and antitumor and immurtostimulating activity are disclosed. The invention further encompasses methods of adding water solubilizing groups to the arylrings that include phosphonyl groups.
hydrogenation of numerous structurally diverse alkynes proceeded in moderate to excellent yield under mild conditions. The high selectivity toward the industrially important alkene substrates, functional group tolerance, and the high recyclability makes the catalytic system unique. Both high activity and selectivity are correlated with a frustratedLewispairs interface formed by the combination of gold
1,10-菲咯啉在TiO 2上热解Au(OAc)3提供了一种高活性和选择性的Au纳米颗粒(NP)催化剂,该催化剂嵌入氮掺杂的碳载体中,[受电子邮件保护]碳/ TiO 2催化剂。系统研究了热解温度,载体类型和氮配体以及Au /配体摩尔比等参数。在温和条件下,许多结构多样的炔烃的高选择性加氢以中等至极好的收率进行。对工业上重要的烯烃底物的高选择性,官能团耐受性和高可回收性使催化体系独树一帜。高活性和选择性都与由N掺杂碳的金和氮原子的组合形成的沮丧的Lewis对界面有关,根据密度泛函理论计算,该界面可以充当促进H 2杂化活化的基本位点在非常温和的条件下。这种“完全非均相”且可循环利用的金催化剂使选择性加氢工艺在环境和经济上都具有吸引力。
A Facile Approach to the Synthesis of 3-Acylisoxazole Derivatives with Reusable Solid Acid Catalysts
gel-supported sodium hydrogen sulfate (NaHSO4/SiO2) or Amberlyst 15 as solid acid catalyst, and then the corresponding 3-acylisoxaszoles were obtained by reacting with alkynes via the 1,3-dipolar [3+2] cycloaddition. These heterogeneous catalysts are easily separable from the reaction mixture and reused. This synthetic method provides a facile, efficient, and reusable production of 3-acylisoxazoles.
Piperazine-promoted gold-catalyzed hydrogenation: the influence of capping ligands
作者:Jhonatan L. Fiorio、Eduardo C. M. Barbosa、Danielle K. Kikuchi、Pedro H. C. Camargo、Matthias Rudolph、A. Stephen K. Hashmi、Liane M. Rossi
DOI:10.1039/c9cy02016k
日期:——
Goldnanoparticles (NPs) combined with Lewis bases, such as piperazine, were found to perform selective hydrogenation reactions via the heterolytic cleavage of H2. Since goldnanoparticles can be prepared by many different methodologies and using different capping ligands, in this study, we investigated the influence of capping ligands adsorbed on gold surfaces on the formation of the gold–ligand interface