摘要 通过 1,2,4-triazolidine-3,5-dione (urazole)、5,5 之间的一锅缩合反应合成三唑并[1,2- a ]吲唑三酮的简便、多组分绿色工艺-二甲基环己烷-1,3-二酮(二甲酮)和醛在牛至的存在下描述了在无溶剂条件下作为高度稳定和可重复使用的环保催化剂的封端银纳米颗粒。使用傅里叶变换红外 (FT-IR)、透射电子显微镜 (TEM)、扫描电子显微镜 (SEM)、能量色散 X 射线光谱、传输电子显微镜 (TEM) 等温线和 X 射线衍射 (XRD) 分析纳米颗粒结构) 光谱。该程序具有简单、条件温和、易于后处理和在短时间内获得优异产量等优点。所有合成的化合物均通过FT-IR、1 H NMR、13 C NMR和元素分析进行了表征。
Novel ionic liquid <i>N,N</i>-diethyl-<i>N</i>-sulfoethanaminium hydrogen sulfate: Design, characterization, and application as a highly efficient catalyst for the production of triazolo[1,2-<i>a</i>]indazole-triones and 2<i>H</i>-indazolo[2,1-<i>b</i>]phthalazine-triones
作者:Abdolkarim Zare、Fatemeh Masihpour
DOI:10.1080/10426507.2016.1149853
日期:2016.8.2
mass data. Then, its catalytic activity was examined for the preparation of triazolo[1,2-a]-indazole-triones and 2H-indazolo[2,1-b]phthalazine-triones by the one-pot multi-component condensation of arylaldehydes with dimedone and 4-phenylurazole/2,3-dihydrophthalazine-1,4-dione under solvent-free conditions. [Et3N-SO3H]HSO4 efficiently promoted the reaction to afford the products in high yields and
Guanidinium-based sulfonic acid as a new Brønsted acid organocatalyst has been synthesized, characterized, and applied for the synthesis of 3,4-dihydroquinoxalin-2-amine, 1,6-dihydropyrazine-2,3-dicarbonitrile, triazolo[1,2-a]indazole-trione, and spiro triazolo[1,2-a]indazole-tetraone derivatives in an aqueous medium. The catalytic system, reported here, possesses the advantages of both homogeneous and heterogeneous catalysts and can be repetitively used in water.
A new, convenient, and high yielding procedure for the synthesis of triazolo[1,2-a]indazole-triones by the condensation reaction between dimedone, aryl aldehydes, and ueazoles in the presence of a catalytic amount of sulfonated polyethylene glycol (PEG-SO3H) as a highly stable and reusable eco-friendly degradable polymeric catalyst is described under solvent-free conditions. This procedure has also
为三唑的合成中的新的,方便,和高产过程[1,2一]吲唑三酮在磺化聚乙二醇的催化量的双甲酮存在下,芳基醛和ueazoles之间的缩合反应(PEG-在无溶剂条件下描述了作为高度稳定且可重复使用的生态友好型可降解聚合物催化剂的SO 3 H)。该方法也已经成功地用于合成新型螺三唑[1,2 - a ]吲唑-四酮。
Quinuclidine Stabilized on FeNi<sub>3</sub>Nanoparticles as Catalysts for Efficient, Green, and One-Pot Synthesis of Triazolo[1,2-<i>a</i>]indazole-triones
作者:Seyed Mohsen Sadeghzadeh
DOI:10.1002/cplu.201300341
日期:2014.2
A new magnetically separable catalyst consisting of quinuclidin-3-thiol supported on propylsilane-functionalized silica-coated FeNi3 nanoparticles (FeNi3 /quinuclidine) has been prepared. The synthesized catalyst was characterized by powder X-ray diffraction, transmission electron microscopy, vibrating sample magnetometry, thermogravimetric analysis, and Fourier transform infrared spectroscopy. The
A multicomponent reaction on a ‘free’ KCC-1 catalyst at room temperature under solvent free conditions by visible light
作者:Seyed Mohsen Sadeghzadeh
DOI:10.1039/c6ra11480f
日期:——
A green and efficient method for the synthesis of various triazolo[1,2-a]indazole-triones under mild conditions is reported. The reported synthesis includes several advantages like being solvent free, operational simplicity, short reaction times, environmentally benign reaction conditions, cost effectiveness, high atom economy, and excellent yields, making it a genuinely green protocol.
报道了一种在温和条件下合成各种三唑并[1,2 - a ]吲唑-三酮的绿色有效方法。报道的合成方法包括无溶剂,操作简便,反应时间短,对环境无害的反应条件,成本效益,高原子经济性和优异的收率等诸多优点,使其成为真正的绿色方案。