40588-50-9Relevant academic research and scientific papers
Design and characterization of [(Et)3?N-H]FeCl4 as a nanomagnetic ionic liquid catalyst for the synthesis of xanthene derivatives under solvent-free conditions
Ezabadi, Ali,Salami, Masoumeh
, (2022/01/24)
The triethylamine-based nanomagnetic ionic liquid, [(Et)3?N-H]FeCl4, was synthesized, and its structural and chemical characteristics were detected. The thermogravimetric analysis indicated its high thermal stability with a decomposi
Basic ionic liquid anchored on UiO-66-NH2 metal–organic framework: a stable and efficient heterogeneous catalyst for synthesis of xanthenes
Askari, Saeed,Khodaei, Mohammad Mehdi,Jafarzadeh, Mohammad
, p. 2881 - 2899 (2021/04/09)
In this study, the Zr-based metal–organic framework, UiO-66-NH2, was modified with ionic liquid (dibutylimidazolium bromide) to generate a platform for supporting an organocatalyst of guanidine. After an anion exchange, the prepared hybrid syst
Incorporation of Keggin-based H3PW7Mo5O40into bentonite: synthesis, characterization and catalytic applications
Aher, Dipak S.,Khillare, Kiran R.,Shankarwar, Sunil G.
, p. 11244 - 11254 (2021/03/31)
The Keggin-based molybdo-substituted tungstophosphoric acid, H3[PW7Mo5O40]·12H2O, were synthesized and incorporated with a bentonite clay by using a wetness impregnation method. The catalysts were cha
Acidic polymer containing sulfunic acid and carboxylic acid groups heterogenized with natural clay: A novel metal free and heterogeneous catalyst for acid-catalyzed reactions
Akbari, Maryam,Heravi, Majid M.,Kahangi, Fatemeh Ghoreyshi,Sadjadi, Samahe
, (2020/02/04)
A novel metal-free solid acid catalyst, PHSA, has been designed and synthesized through facile and environmentally benign procedure via using halloysite nanoclay as a natural and biocompatible support. The synthetic protocol included co-polymerization of
Magnetic Fe–Cr–Ni oxide alloy nano-belts prepared from the chemical decomposition of a stainless steel screw (a top-down approach): an efficient and cheap catalyst for multicomponent reactions
Kazemnejadi, Milad,Sharafi, Zeinab,Mahmoudi, Boshra,Zeinali, Atefeh,Nasseri, Mohammad Ali
, p. 777 - 787 (2019/11/21)
Abstract: A new, cheap, and accessible method has been used for the preparation of nano-belts from the chemical decomposition (top-down approach) of a cheap stainless steel screw and found as an efficient magnetically recyclable nanocatalyst for the prepa
Introduction of a novel dicationic Br?nsted acidic ionic liquid based on pyrazine and its application in the synthesis of xanthenediones and 3, 4-dihydropyrimidin-2(1H)-ones under solvent-free conditions
Sadati Sorkhi, Seyyed Erfan,Hashemi, Mohammad M.,Ezabadi, Ali
, p. 2229 - 2246 (2020/02/15)
A novel dicationic Br?nsted acidic ionic liquid based on pyrazine has been prepared and characterized by FTIR, 1H NMR, 13C NMR, MS, thermal gravimetric and differential thermal gravimetric analysis and also Hammett acidity function.
Heterogeneous SO3H@Fe3O4 magnetic nanocatalyst as an efficient and reusable medium for the synthesis of 3,3′-(arylmethylene)-bis-(4-hydroxycoumarin), bis-(indolyl)-methane, and 1,8-dioxo-octahydroxanthene derivatives
Wu, Xiaobo,Peng, Wan-Xi
, p. 2129 - 2148 (2020/06/24)
This work aimed to synthesize a new heterogeneous catalyst (SO3H@Fe3O4 magnetic nanoparticles) and the study of its catalytic behavior in synthesizing 3,3′-(arylmethylene)-bis-(4-hydroxycoumarin), bis-(indolyl)-methane, an
Fe3O4@THAM-piperazine: a novel and highly reusable nanocatalyst for one-pot synthesis of 1,8-dioxo-octahydro-xanthenes and benzopyrans
Faroughi Niya, Homayoun,Hazeri, Nourallah,Fatahpour, Maryam,Maghsoodlou, Malek Taher
, p. 3651 - 3666 (2020/05/25)
Abstract: A novel magnetically heterogeneous nanocatalyst has been successfully synthesized via the immobilization of piperazine on tris (hydroxymethyl) aminomethane-coated Fe3O4 magnetic nanoparticles. The described catalyst was ful
One-pot three-component synthesis of 1,8-dioxooctahydroxanthenes and 14-Aryl-14Hdibenzo[a,j]xanthenes using a new nanostructure zeolite
Hojati, Seyedeh Fatemeh,Moosavifar, Maryam,Moeinieghbali, Nasrin
, (2020/02/15)
Abstract: A new modified zeolite containing Fe nanoparticles loaded in zeolite X (Fe-X) has been synthesized and characterized by FT-IR, XRD, EDX and SEM techniques and its catalytic activity has been investigated in the synthesis of two series of xanthen
An expedient and straightforward solvent-free synthesis of 1,8-dioxo-octahydroxanthenes using eco-friendly aluminized polyborate catalyst
Aute, Dilip,Kshirsagar, Akshay,Uphade, Bhagwat,Gadhave, Anil
, p. 3691 - 3702 (2020/08/19)
The present work deals with a catalytic application of aluminized polyborate as a mild solid acid catalyst for multicomponent synthesis of 1,8-dioxo-octahydroxanthenes under solvent-free condition at 100°C-110°C. It involves selective domino Knoevenagel-M
