Iron complexes based on di(1H-tetrazol-5-yl) methanone: Syntheses, crystal structures and characterization
摘要:
Two energetic complexes, Fe-2(II)(DTMone)(2)(H2O)(6) (1) and (Fe2O)-O-III(DTMone)(2)(H2O)(12) (2) [H(2)DTMone = di (1H-tetrazol-5-yl) methanone] were synthesized and characterized by FT-IR spectroscopy, elemental analysis, and single-crystal X-ray diffraction. The coordination complex (1) and (2) belong to the P2(1)/n and P1 space group, respectively. Both Iron cations are six-coordinated in octahedral fashion, by N atoms and O atoms. However, the O atoms of (2) have one free atom which is different from (1). The structure of complex (2) is analogous to two dimension structure due to the oxygen ligands participating in the coordination. Their thermal stabilities were investigated by differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA). Additionally, the DSC measurements display that the dehydrated polymers possess excellent thermal stability, and the thermal decomposition peak temperature is as high as 285 degrees C. The sensitivities to external stimuli were determined with BAM standard methods as for impact >40 J (TNT,15J) and for friction >360 N. (C) 2018 Elsevier Ltd. All rights reserved.
advantages of this catalyst. The catalytic activity has been explored for the oxidation of sulfides, oxidative coupling of thiols and synthesis of 5-substituted tetrazoles.Graphical AbstractA magnetically retrievable heterogeneous copper nanocatalyst for the synthesis of 5-substituted tetrazoles and oxidation reactions
[EN] INHIBITORS OF CD40-CD154 BINDING<br/>[FR] INHIBITEURS DE LIAISON CD40-CD154
申请人:TONIX PHARMACEUTICALS HOLDING CORP
公开号:WO2020210831A1
公开(公告)日:2020-10-15
Disclosed herein are compounds including pharmaceutically acceptable salts, esters, prodrugs, hydrates and tautomers thereof which modulate the interactions of CD-40-CD40L. The compounds are useful for treating, ameliorating or preventing an autoimmune disease, inflammatory disease, or other immune-related disease in a patient in need of treatment.
Thallium(I)- and organothallium(III)-substituted mono-, bis- and tris-tetrazoles: synthesis and supramolecular structures
作者:Sonali Bhandari、Mary F. Mahon、Kieran C. Molloy、Julie S. Palmer、Stephen F. Sayers
DOI:10.1039/a910235n
日期:——
Six thallium(I) tetrazolates have been synthesized by either the addition of an alcoholic solution of the appropriate tetrazole to an ethanolic solution of thallium ethoxide, or from the sodium salt of the tetrazole with Tl2SO4. Seven diphenylthallium-substituted mono- and bis-tetrazoles have been synthesized by a condensation route involving the appropriate tetrazole and diphenylthallium hydroxide
通过添加适当浓度的乙醇溶液,已经合成了六种四唑al(I)四唑 到乙醇th的乙醇溶液中,或从 钠盐 的 四唑用Tl 2 SO 4。通过缩合反应合成了七个二苯基th取代的单-和双-四唑四唑 和 氢氧化二苯th。1-二苯基噻烯基-5-苯基四唑也可以通过之间的环加成反应制得叠氮化二苯th 和 苄腈。[Tl(18-crown-6)+ ] 2 [C 2 N 10 2− ],Ph 2 TlN 4 CPh·MeOH,1,4-(Ph 2 TlN 4 C)2 C 4 H 8 ·2MeOH的结构和1,2-(PH 2 TLN 4 C)2 C ^ 6 ħ 4 ·博士2 TLCL·2MeOH·2H 2 ö已被确定。后三种化合物产生掺入六元Tl 2 N 4环的超分子结构。最后两个包含第一个示例四唑 利用所有四个可用环 氮 进行协调。
Synthesis of 5-Substituted 1<i>H</i>-Tetrazoles from Nitriles by Continuous Flow: Application to the Synthesis of Valsartan
作者:Florian Carpentier、François-Xavier Felpin、Françoise Zammattio、Erwan Le Grognec
DOI:10.1021/acs.oprd.9b00526
日期:2020.5.15
An efficient continuous flow process for the synthesis of 5-substituted 1H-tetrazoles is described. The process involves the reaction between a polymer-supported triorganotin azide and organic nitriles. The polymer-supported organotin azide, which is in situ generated with a polystyrene-supported triorganotin alkoxide and trimethylsilylazide, is immobilized in a packed bed reactor. This approach is
Rectangular ZnO porous nano-plate assembly with excellent acetone sensing performance and catalytic activity
作者:Arnab Kanti Giri、Arka Saha、Aniruddha Mondal、Subhash Chandra Ghosh、Susmita Kundu、Asit Baran Panda
DOI:10.1039/c5ra19828c
日期:——
synthesized porous ZnOarchitecture exhibited high sensitivity towards acetone even in low concentration (S = 3.4 in 1 ppm acetone) with good selectivity. The ZnO nanostructured material as a heterogeneous catalyst also showed excellent catalytic activity for the synthesis of 5-substituted-1H-tetrazoles (yield = 94%). Both the activities are superior than those of other reported ZnO based acetone sensors