111861-46-2Relevant articles and documents
Application of novel multi-cationic ionic liquids in microwave assisted 2-amino-4H-chromene synthesis
Kumbhar, Arjun,Jadhav, Sanjay,Shejwal, Rajendra,Rashinkar, Gajanan,Salunkhe, Rajshri
, p. 19612 - 19619 (2016)
Novel multi-cationic ionic liquids containing a mesitylene backbone with acetate and methane sulphonate anions have been synthesized. These ionic liquids were used for the synthesis of 2-amino-4H-chromenes under microwave heating. The effects of nature and amount of ionic liquids on the yield and reaction time were thoroughly investigated. The ionic liquids showed a considerable level of reusability without a significant decrease in catalytic activity. We have successfully combined the advantages of microwave technology with ionic liquids to facilitate the rapid construction of chromene skeletons from readily obtainable and inexpensive materials via a multicomponent strategy.
Synthesis of 2-amino-3-cyano 4-H-chromenes containing quinoline in water: computational study on substituent effects
Heravi, Majid M.,Hosseinnejad, Tayebeh,Faghihi, Zeinab,Shiri, Morteza,Vazinfard, Mahdiyeh
, p. 823 - 832 (2017)
An efficient, high yielding and environmentally benign strategy to the synthesis of new 2-amino-3-cyano-4-H-chromene derivatives, via one-pot three-component reaction involving malononitrile, various α- or β-naphthol and appropriate aromatic aldehydes inc
New pyrano-1,2,3-triazolopyrimidinone derivatives as anticholinesterase and antibacterial agents: Design, microwave-assisted synthesis and molecular docking study
Al-Ghamdi, Youssef O.,Almalki, Sami G.,Alqurashi, Yaser E.,Ben Jannet, Hichem,Cherif, Maher,Horchani, Mabrouk,Romdhane, Anis
, (2020)
This work describes an effective microwave-assisted synthesis of new hybrid regioisomeric molecules N-linked-1,2,3-triazole along with pyranopyrimidinone moiety under copper(I) catalyst, and the evaluation of their anticholinesterase and antibacterial act
Studies on the synthesis of substituted 2-amino-4H-benzo[h]chromene and 3-amino-1H-benzo[f]chromene derivatives using base supported ionic liquid like-phase (SILLP) as an efficient green catalyst
Kheirkhah, Leila,Mamaghani, Manouchehr,Mahmoodi, Nosrat Ollah,Yahyazadeh, Asieh,Ziabari, Seyedeh Saeedeh Mirnezami
, p. 21 - 24 (2017)
The synthesis of several substituted 2-amino-4H-benzo[h]chromene and 3-amino-1H-benzo[f]chromene derivatives was carried out using a one-pot three-component reaction of an arylaldehyde, malononitrile and a naphthol in H2O and in the presence of
Novel ferrocene-based ionic liquid supported on silica nanoparticles as efficient catalyst for synthesis of naphthopyran derivatives
Teimuri-Mofrad, Reza,Gholamhosseini-Nazari, Mahdi,Payami, Elmira,Esmati, Somayeh
, p. 7105 - 7118 (2017)
We report synthesis of silica nanospheres containing ferrocene-tagged imidazolium acetate (SiO2@Im-Fc[OAc]) as efficient heterogeneous nanocatalyst for synthesis of naphthopyran derivatives under solvent-free conditions, based on modification o
Aegle marmelos in heterocyclization: Greener, highly efficient, one-pot three-component protocol for the synthesis of highly functionalized 4 H -benzochromenes and 4 H -chromenes
Shinde, Sachin,Damate, Shashikant,Morbale, Smita,Patil, Megha,Patil, Suresh S.
, p. 7315 - 7328 (2017)
A facile, one-pot three-component protocol for the synthesis of 2-amino-4H-chromene derivatives has been demonstrated using Bael Fruit Extract (BFE) as a natural catalyst in a green reaction medium. This method offers a mild, efficient and highly economic
KG-60-piperazine as an efficient heterogeneous catalyst for three-component synthesis of 2-amino-2H-chromenes
Golari, Neda,Rahimizadeh, Mohammad,Bakavoli, Mehdi,Rezaei-Seresht, Esmail
, p. 6023 - 6032 (2015)
Abstract Silica-supported piperazine (KG-60-piperazine), as a mild and efficient basic catalyst, has played a role in the three-component reaction of some substituted benzaldehydes, malononitrile, and phenols, to yield the corresponding 2-amino-2H-chromen
Polystyrene-supported 1-methylimidazolium tetrachloro ferrate: Synthesis, characterization, and application as an efficient and reusable heterogeneous catalyst for one-pot synthesis of 4H-chromene derivatives in aqueous media
Taheri, Narges,Fallah-Mehrjardi, Mehdi,Sayyahi, Soheil
, p. 531 - 540 (2018)
Polystyrene-supported 1-methylimidazolium tetrachloroferrate (PS[mim][FeCl4]) was prepared and characterized by Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM) and energy dispersive X-ray analysis (EDX). The
Aqua mediated synthesis of substituted 2-amino-4H-chromenes catalyzed by green and reusable Preyssler heteropolyacid
Heravi, Majid M.,Bakhtiari, Khadijeh,Zadsirjan, Vahideh,Bamoharram, Fatemeh F.,Heravi, Omid M.
, p. 4262 - 4265 (2007)
A simple, clean and environmentally benign route to the synthesis of 2-amino-4H-chromenes is described using Preyssler type heteropolyacid, H14[NaP5W30O110], as a green and reusable catalyst in water. The produc
Synthesis and Biological Assessment of Racemic Benzochromenopyrimidinimines as Antioxidant, Cholinesterase, and Aβ1?42Aggregation Inhibitors for Alzheimer's Disease Therapy
Dgachi, Youssef,Ismaili, Lhassane,Knez, Damijan,Benchekroun, Mohamed,Martin, Hélène,Sza?aj, Natalia,Wehle, Sarah,Bautista-Aguilera, Oscar M.,Luzet, Vincent,Bonnet, Alexandre,Malawska, Barbara,Gobec, Stanislav,Chioua, Mourad,Decker, Michael,Chabchoub, Fakher,Marco-Contelles, José
, p. 1318 - 1327 (2016)
Given the complex nature of Alzheimer′s disease (AD), compounds that are able to simultaneously address two or more AD-associated targets show greater promise for development into drugs for AD therapy. Herein we report an efficient two-step synthesis and biological evaluation of new racemic benzochromene derivatives as antioxidants, inhibitors of cholinesterase and β-amyloid (Aβ1?42) aggregation. Based on the results of the primary screening, we identified 15-(3-methoxyphenyl)-9,11,12,15-tetrahydro-10H,14H-benzo[5,6]chromeno[2,3-d]pyrido[1,2-a]pyrimidin-14-imine (3 e) and 16-(3-methoxyphenyl)-9,10,11,12,13,16-hexahydro-15H-benzo[5′,6′]chromeno[2′,3′:4,5]pyrimido[1,2-a]azepin-15-imine (3 f) as new potential multitarget-directed ligands for AD therapy. Further in-depth biological analysis showed that compound 3 f is a good human acetylcholinesterase inhibitor [IC50=(0.36±0.02) μm], has strong antioxidant activity (3.61 μmol Trolox equivalents), and moderate Aβ1?42antiaggregating power (40.3 %).
Ultrasonic-assisted preparation of Co3O4 and Eu-doped Co3O4 nanocatalysts and their application for solvent-free synthesis of 2-amino-4H-benzochromenes under microwave irradiation
Kafi-Ahmadi, Leila,Poursattar Marjani, Ahmad,Nozad, Ehsan
, (2021)
Co3O4 and Eu-doped Co3O4 nanocatalysts were synthesized through an ultrasonic-assisted solvothermal method and were characterized with X-ray diffraction (XRD), Fourier transform infrared (FT-IR), energy-dispersi
SBA-15@methenamine-HPA: a novel, simple, and efficient catalyst for one-pot three-component synthesis of 2-amino-4H-chromene derivatives in aqueous medium
Sadjadi, Samahe,Heravi, Majid M.,Zadsirjan, Vahideh,Ebrahimizadeh, Maryam
, p. 5467 - 5483 (2017)
Abstract: Cl-functionalized SBA-15 was reacted with methenamine and subsequently applied for embedding heteropolyacids. The novel catalyst, SBA-15@methenamine-HPA, was characterized by using scanning electron microscopy (SEM) with energy-dispersive X-ray
A novel and efficient catalyst to one-pot synthesis of 2-amino-4H-chromenes by methanesulfonic acid
Heravi, Majid M.,Baghernejad, Bita,Oskooie, Hossein A.
, p. 659 - 662 (2008)
Methanesulfonic acid efficiently catalyzes the one-pot, three component reaction of an aromatic aldehyde, malonitrile and α or β-naphthol to yield 2-amino-4H-chromenes in very good yields.
Thiourea dioxide catalyzed multi-component coupling reaction for the one step synthesis of naphthopyran derivatives
Verma, Sanny,Jain, Suman L.
, p. 6055 - 6058 (2012)
An aqueous solution of thiourea dioxide was used to catalyze a one-pot three-component coupling reaction of an aromatic aldehyde, malononitrile, and α- or β-naphthol for the synthesis of various naphthopyran derivatives in excellent yields. At the end of
Synthesis and characterization of pine-cone derived carbon-based solid acid: A green and recoverable catalyst for the synthesis of pyra-no_pyrazole, amino-benzochromene, amidoalkyl naphthol and thiazoli-dinedione derivatives
Ghorbani, Fatemeh,Pourmousavi, Seied Ali,Kiyani, Hamzeh
, p. 66 - 81 (2021/03/19)
In this report, SO3H-functionalized Carbon nanoparticles (Pine-SO3H) with high acid density have been synthesized by the thermal treatment of sulfuric acid with Pine-Cone as carbon-based at 180oC in a sealed autoclave in a
Solvent-free synthesis of compounds containing chromene core catalyzed by novel Br?nsted acidic ionic liquids-ClO4
Taib, Layla A.,Keshavarz, Mosadegh,Parhami, Abolfath
, p. 1128 - 1137 (2021/02/03)
A series of novel sulfonic acid-functionalized Br?nsted acidic ionic liquids (BAILs) with perchlorate counter anion are introduced. These ionic liquid catalysts were prepared through simple and eco-friendly procedures in high yields. Various analytical te