40588-51-0Relevant academic research and scientific papers
Tungsten oxides: green and sustainable heterogeneous nanocatalysts for the synthesis of bioactive heterocyclic compounds
Siddiqui,Shaikh, Shoyebmohamad F.,Totawar, Balaji B.,Dumpala, Madhuri,Ubaidullah, Mohd,Thamer, Badr M.,Mane, Rajaram S.,Al-Enizi, Abdullah M.
supporting information, p. 2032 - 2041 (2021/02/26)
Tungsten oxide (WO3) as an efficient heterogeneous catalyst was preparedviaa simple hydrothermal route for the synthesis of a wide range of bioactive heterocyclic compounds. The present investigation deals with the rapid and low-cost synthesis
Fabrication of activated carbon sulfuric acid as an excellent and novel solid acid catalyst, evaluating its catalytic activity in synthesizing 1,8-dioxo-octahydroxanthenes and 14-aryl-14H-dibenzo[a,j]xanthenes
Marandi, Alireza,Koukabi, Nadiya,Zolfigol, Mohammad Ali
, p. 3145 - 3163 (2021/05/03)
In this work, for the first time, a novel and innovative procedure has been utilized to chemically functionalize activated carbon (AC) based on the sulfonation reaction, which can be used in catalytic reactions as a strong solid acid. For this aim, AC mus
Sulfonamide-Functionalized Porous Organic Framework as an Efficient Heterogeneous Acid Catalyst for One-Pot Preparation of 1,8-Dioxooctahydroxanthenes
Farsi, R.,Mohammadi, M. K.,Saghanezhad, S. J.
, p. 2002 - 2009 (2022/01/24)
Abstract: Herein, we report the sulfonamide-functionalized covalent organic framework (COF-SO3H), prepared by condensation of melamine and terephthalaldehyde and subsequent sulfonation, as an acidic porous catalyst for the one-pot preparation o
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
ChCl: Gly (DESs) promote environmentally benign synthesis of xanthene derivatives and their antitubercular activity
Al-Dhfyan, Abdullah,Al-Tuwajiria, Hanaa M.,Ansari, Siddique Akber,Bhat, Mashooq A.,Naglah, Ahmed M.
, (2021/07/06)
A ChCl: Gly (DESs) promoted environmentally benign method was developed for the first time using the reaction of aryl aldehydes and dimedone to give excellent yields of xanthene analogues. The major application of this present protocol is the use of green
Ag nanoparticles stabilized on cyclodextrin polymer decorated with multi-nitrogen atom containing polymer: An efficient catalyst for the synthesis of xanthenes
Dorraj, Masoumeh,Heravi, Majid M.,Kahangi, Fatemeh Ghoreyshi,Sadjadi, Samahe
, (2020/02/03)
In attempt to broaden the use of cyclodextrin polymer for catalytic purposes, a novel covalent hybrid system was prepared through growth of multi-nitrogen atom containing polymer (PMelamine) derived from reaction of ethylenediamine and 2,4,6-trichloro-1,3
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
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
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
One-pot multi-component process for the synthesis of 4-azaphenanthrene-3,10-dione, 1,8-dioxo-octahydroxanthene and tetrahydrobenzo[b]pyran derivatives catalyzed by the deep eutectic solvent choline chloride-oxalic acid
Sayahi, Mohammad Hosein,Gorjizadeh, Maryam,Meheiseni, Melan,Sayyahi, Soheil
, p. 269 - 279 (2020/02/25)
An effective method based on choline chloride (ChCl)-oxalic acid (Ox) deep eutectic solvent was proposed for the synthesis of 4-azaphenanthrene-3,10-dione, 1,8-dioxo-octahydroxanthene and tetrahydrobenzo[b]pyran derivatives. The eutectic mixture worked as
