Aniline-terephthalaldehyde resin <i>p</i>-toluenesulfonate (ATRT) as a highly efficient and reusable catalyst for alcoholysis, hydrolysis, and acetolysis of epoxides
作者:Kiyoshi Tanemura、Tsuneo Suzuki
DOI:10.1080/00397911.2016.1223309
日期:2016.11.16
ABSTRACT Alcoholysis, hydrolysis, and acetolysis of epoxides were carried out in the presence of a catalytic amount of aniline-terephthalaldehyde resin p-toluenesulfonate (ATRT) to give the corresponding β-substituted alcohols in good yields. Alcoholysis and hydrolysis of epoxides catalyzed by ATRT proceeded faster than those by pyridinium p-toluenesulfonate (PPTS). GRAPHICAL ABSTRACT
Urea-containing metal-organic frameworks as heterogeneous organocatalysts
作者:Alireza Azhdari Tehrani、Sedigheh Abedi、Ali Morsali、Jun Wang、Peter C. Junk
DOI:10.1039/c5ta03835a
日期:——
Two novel pillared MOFs containing a urea-functional group are introduced and their efficiency as organocatalysts is evaluated in methanolysis of epoxides.
介绍了两种含有脲功能团的新型柱状金属有机框架,并评估了它们作为有机催化剂在环氧化物的甲醇解的效率。
Zirconium triflate grafted on SBA-15 as a highly efficient solid acid catalyst for ring opening of epoxides by amines and alcohols
作者:Kamlesh N. Tayade、Lianyue Wang、Sensen Shang、Wen Dai、Manish Mishra、Shuang Gao
DOI:10.1016/s1872-2067(17)62794-3
日期:2017.4
in-situ pyridine FT-IR spectroscopy, and elemental analysis. ZrTf/S was found to be a highly efficient and reusable solid acid catalyst for ringopening of epoxides with amines and alcohols and produced β-amino alcohols and β-alkoxy alcohols respectively under ambient reaction conditions. The ZrTf/S catalyst showed the highest activity, which was attributed to its high acidity compared with that of
Target-Architecture Engineering of a Novel Two-dimensional Metal–Organic Framework for High Catalytic Performance
作者:Farzaneh Afshariazar、Ali Morsali
DOI:10.1021/acs.cgd.9b00459
日期:2019.8.7
A novel 2D-MOF, [Zn(L1)(oba)], an effective heterogeneous H-bond donor catalyst, based on carbohydrazide moiety (L1), was synthesized. Remarkable enhanced catalytic activity was achieved for methanolysis of epoxides by applying two effective strategies: (i) increasing the acidic strength of the H-bond donors and (ii) providing more accessible active sites within the framework.
基于羧酰肼分子(L1)合成了一种新型 2D-MOF [Zn(L1)(oba)],它是一种有效的异相 H 键供体催化剂。通过采用两种有效策略:(i) 增加氢键供体的酸性强度;(ii) 在框架内提供更多可访问的活性位点,显著增强了催化剂对环氧化物甲醇分解的催化活性。
[EN] PHOSPHATIDYLCHOLINE SYNTHESIS INHIBITORS<br/>[FR] INHIBITEURS DE LA SYNTHESE DE LA PHOSPHATIDYLCHOLINE
申请人:——
公开号:WO1998009668A2
公开(公告)日:1998-03-12
[EN] Use of an amphiphilic compound in the manufacture of a medicament for the inhibition of phosphatidylcholine synthesis, said amphiphilic compound have the following properties: i) the compound copmprises a non-ionic, cationic or anionic hydrophilic head group and a hydrophobic tail group; ii) the head group has a cross section A and the tail group has a cross section B such that the ratio B:A is less than 0.7:1; iii) the tail group comprises a straight hydrocarbon chain having from 8 to 18 carbon atoms; and iv) the amphiphilic compound has a membrane/water partition coefficient of more than 1 x 10<-3>. [FR] L'invention porte sur l'utilisation d'un composé amphiphile pour la fabrication d'un médicament inhibant la synthèse de la phosphatidylcholine. Ledit composé amphiphile présente les propriétés suivantes: (i) il comporte un groupe hydrophile de tête non ionique, cationique ou anionique, et un groupe hydrophobe de queue, (ii) le groupe de tête présente une section A et le groupe de queue présente une section B telles que le rapport B:A est inférieur à 0,7:1, (iii) le groupe de queue comporte une chaîne droite d'hydrocarbures présentant de 8 à 18 atomes de carbone, et (iv) le composé amphiphile présente un coefficient de séparation membrane/eau supérieur à 1 x 10<-3>.