Polyphosphoric acid supported on Ni0.5Zn0.5Fe2O4 nanoparticles as a magnetically-recoverable green catalyst for the synthesis of pyranopyrazoles

Polyphosphoric acid supported on Ni0.5Zn0.5Fe2O4 nanoparticles as a magnetically-recoverable green catalyst for the synthesis of pyranopyrazoles

Polyphosphoric acid supported on silica coated Ni0.5Zn0.5Fe2O4 nanoparticles was found to be magnetically separable, highly efficient, eco-friendly, green and recyclable heterogeneous catalyst. This new catalyst at first was fully characterized by TEM, SEM, FTIR and XRD techniques and then catalytic...

Full description

Bibliographic Details
Main Authors: Farid Moeinpour, Amir Khojastehnezhad
Format: Article
Language:English
Published: Elsevier 2017-05-01
Series:Arabian Journal of Chemistry
Subjects:
Polyphosphoric acid
Catalysis
Pyranopyrazoles
Magnetic nanoparticles
Online Access:http://www.sciencedirect.com/science/article/pii/S1878535214000379
id doaj-3e479d579e6946a2843ec68ef65ce13b
record_format Article
spelling doaj-3e479d579e6946a2843ec68ef65ce13b2020-11-24T21:57:26ZengElsevierArabian Journal of Chemistry1878-53522017-05-0110S2S3468S347410.1016/j.arabjc.2014.02.009Polyphosphoric acid supported on Ni0.5Zn0.5Fe2O4 nanoparticles as a magnetically-recoverable green catalyst for the synthesis of pyranopyrazolesFarid Moeinpour0Amir Khojastehnezhad1Department of Chemistry, College of Sciences, Bandar Abbas Branch, Islamic Azad University, 7915893144, IranDepartment of Chemistry, Mashhad Branch, Islamic Azad University, Mashhad, IranPolyphosphoric acid supported on silica coated Ni0.5Zn0.5Fe2O4 nanoparticles was found to be magnetically separable, highly efficient, eco-friendly, green and recyclable heterogeneous catalyst. This new catalyst at first was fully characterized by TEM, SEM, FTIR and XRD techniques and then catalytic activity of this catalyst was investigated in the synthesis of 5-cyano-1,4-dihydropyrano[2,3-c]pyrazoles. Also the Ni0.5Zn0.5Fe2O4 magnetic nanoparticle-supported polyphosphoric acid could be reused at least six times without significant loss of activity. It could be recovered easily by applying an external magnet.http://www.sciencedirect.com/science/article/pii/S1878535214000379Polyphosphoric acidCatalysisPyranopyrazolesMagnetic nanoparticles
collection DOAJ
language English
format Article
sources DOAJ
author Farid Moeinpour
Amir Khojastehnezhad
spellingShingle Farid Moeinpour
Amir Khojastehnezhad
Polyphosphoric acid supported on Ni0.5Zn0.5Fe2O4 nanoparticles as a magnetically-recoverable green catalyst for the synthesis of pyranopyrazoles
Arabian Journal of Chemistry
Polyphosphoric acid
Catalysis
Pyranopyrazoles
Magnetic nanoparticles
author_facet Farid Moeinpour
Amir Khojastehnezhad
author_sort Farid Moeinpour
title Polyphosphoric acid supported on Ni0.5Zn0.5Fe2O4 nanoparticles as a magnetically-recoverable green catalyst for the synthesis of pyranopyrazoles
title_short Polyphosphoric acid supported on Ni0.5Zn0.5Fe2O4 nanoparticles as a magnetically-recoverable green catalyst for the synthesis of pyranopyrazoles
title_full Polyphosphoric acid supported on Ni0.5Zn0.5Fe2O4 nanoparticles as a magnetically-recoverable green catalyst for the synthesis of pyranopyrazoles
title_fullStr Polyphosphoric acid supported on Ni0.5Zn0.5Fe2O4 nanoparticles as a magnetically-recoverable green catalyst for the synthesis of pyranopyrazoles
title_full_unstemmed Polyphosphoric acid supported on Ni0.5Zn0.5Fe2O4 nanoparticles as a magnetically-recoverable green catalyst for the synthesis of pyranopyrazoles
title_sort polyphosphoric acid supported on ni0.5zn0.5fe2o4 nanoparticles as a magnetically-recoverable green catalyst for the synthesis of pyranopyrazoles
publisher Elsevier
series Arabian Journal of Chemistry
issn 1878-5352
publishDate 2017-05-01
description Polyphosphoric acid supported on silica coated Ni0.5Zn0.5Fe2O4 nanoparticles was found to be magnetically separable, highly efficient, eco-friendly, green and recyclable heterogeneous catalyst. This new catalyst at first was fully characterized by TEM, SEM, FTIR and XRD techniques and then catalytic activity of this catalyst was investigated in the synthesis of 5-cyano-1,4-dihydropyrano[2,3-c]pyrazoles. Also the Ni0.5Zn0.5Fe2O4 magnetic nanoparticle-supported polyphosphoric acid could be reused at least six times without significant loss of activity. It could be recovered easily by applying an external magnet.
topic Polyphosphoric acid
Catalysis
Pyranopyrazoles
Magnetic nanoparticles
url http://www.sciencedirect.com/science/article/pii/S1878535214000379
work_keys_str_mv AT faridmoeinpour polyphosphoricacidsupportedonni05zn05fe2o4nanoparticlesasamagneticallyrecoverablegreencatalystforthesynthesisofpyranopyrazoles
AT amirkhojastehnezhad polyphosphoricacidsupportedonni05zn05fe2o4nanoparticlesasamagneticallyrecoverablegreencatalystforthesynthesisofpyranopyrazoles
_version_ 1725855591158513664

Similar Items