RSC Advances, ( ISI ), Volume (5), No (20), Year (2015-10) , Pages (87769-87780)

Title : ( Sulfonated nanohydroxyapatite functionalized with 2-aminoethyl dihydrogen phosphate (HAP@AEPH2- SO3H) as a new recyclable and eco-friendly catalyst for rapid one-pot synthesis of 4,40-(aryl methylene) bis(3-methyl-1H-pyrazol-5-ol)s )

Authors: monireh zarghani , Batool Akhlaghinia ,

Citation: BibTeX | EndNote

Sulfonated nanohydroxyapatite functionalized with 2-aminoethyl dihydrogen phosphate (HAP@AEPH2- SO3H), a new green, recyclable solid acid catalyst, was prepared and characterized using FT-IR, XRD, SEM, TEM and TGA/DTA techniques. The composition of HAP@AEPH2-SO3H was determined as nanohydroxyapatite, while the particles were observed to have nanorod morphology. Size estimations using TEM (10–100 nm) and the crystallinity from XRD (hexagonal phase) are well-matched to the character of nanohydroxyapatite. The catalytic activity of HAP@AEPH2-SO3H was evaluated for the synthesis of 4,40-(aryl methylene)bis(3-methyl-1H-pyrazol-5-ol)s via one-pot reactions of phenylhydrazine/or hydrazine hydrate, ethyl acetoacetate and aldehydes under solvent-free conditions. This catalyst showed notable advantages, such as environmental friendliness, excellent yields, shorter reaction time, reusability of the inexpensive catalyst and easy workup procedure.

Keywords

, HAP@AEPH2-SO3H, 4, 4'-(aryl methylene)bis(3-methyl-1H-pyrazol-5-ol)s, one-pot multi-component reaction, green
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@article{paperid:1050269,
author = {Zarghani, Monireh and Akhlaghinia, Batool},
title = {Sulfonated nanohydroxyapatite functionalized with 2-aminoethyl dihydrogen phosphate (HAP@AEPH2- SO3H) as a new recyclable and eco-friendly catalyst for rapid one-pot synthesis of 4,40-(aryl methylene) bis(3-methyl-1H-pyrazol-5-ol)s},
journal = {RSC Advances},
year = {2015},
volume = {5},
number = {20},
month = {October},
issn = {2046-2069},
pages = {87769--87780},
numpages = {11},
keywords = {HAP@AEPH2-SO3H; 4;4'-(aryl methylene)bis(3-methyl-1H-pyrazol-5-ol)s; one-pot multi-component reaction; green chemistry},
}

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%0 Journal Article
%T Sulfonated nanohydroxyapatite functionalized with 2-aminoethyl dihydrogen phosphate (HAP@AEPH2- SO3H) as a new recyclable and eco-friendly catalyst for rapid one-pot synthesis of 4,40-(aryl methylene) bis(3-methyl-1H-pyrazol-5-ol)s
%A Zarghani, Monireh
%A Akhlaghinia, Batool
%J RSC Advances
%@ 2046-2069
%D 2015

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