Method to produce hydrazone from hydrazide

The present invention provides a method to produce hydrazone from hydrazide. The method includes steps of mixing a hydrazide with an aldehyde in a reaction device, adding an organic solvent forming a mixture, stirring the mixture at a oredetermined speed and a predetermined temperature for a predete...

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Main Authors: Ibrahim, Nor Azowa, Mohd Noor, Siti Mariam, Mohamad, Noor Khairin, Yeong, Shoot Kian
Format: Patent
Published: 2014
Online Access:http://psasir.upm.edu.my/id/eprint/33997/
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Institution: Universiti Putra Malaysia
id my.upm.eprints.33997
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spelling my.upm.eprints.339972015-04-28T10:39:30Z http://psasir.upm.edu.my/id/eprint/33997/ Method to produce hydrazone from hydrazide Ibrahim, Nor Azowa Mohd Noor, Siti Mariam Mohamad, Noor Khairin Yeong, Shoot Kian The present invention provides a method to produce hydrazone from hydrazide. The method includes steps of mixing a hydrazide with an aldehyde in a reaction device, adding an organic solvent forming a mixture, stirring the mixture at a oredetermined speed and a predetermined temperature for a predetermined period of time, carrying out reaction under a reflux system wherein condenser used in the reflux system is equipped with a circulating bath forming a reaction product, cooling the reaction product at an ambient temperature after the completion of reaction, adding a non-reacting liquid to the reaction product to form a white paste produiuct, conducting filtration on the white paste product to produce a dried white-solid product, recrystallizing the dried white-solid product from dimethylformamide, adding 30 to 50 mL of an organic solvent which has been heated to a temperature of between 40C to 80C to the dried white-solid product to obtain a clear solution, adding between 5 to 15mL of a non-reacting liquid to allow formation of a white paste hydrazone and conducting filtration on the white paste hydrazone to obtain dried white-solid product. 2014-12-30 Patent NonPeerReviewed Nor Azowa Ibrahim (2014) Method to produce hydrazone from hydrazide. PI2014003628.
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
description The present invention provides a method to produce hydrazone from hydrazide. The method includes steps of mixing a hydrazide with an aldehyde in a reaction device, adding an organic solvent forming a mixture, stirring the mixture at a oredetermined speed and a predetermined temperature for a predetermined period of time, carrying out reaction under a reflux system wherein condenser used in the reflux system is equipped with a circulating bath forming a reaction product, cooling the reaction product at an ambient temperature after the completion of reaction, adding a non-reacting liquid to the reaction product to form a white paste produiuct, conducting filtration on the white paste product to produce a dried white-solid product, recrystallizing the dried white-solid product from dimethylformamide, adding 30 to 50 mL of an organic solvent which has been heated to a temperature of between 40C to 80C to the dried white-solid product to obtain a clear solution, adding between 5 to 15mL of a non-reacting liquid to allow formation of a white paste hydrazone and conducting filtration on the white paste hydrazone to obtain dried white-solid product.
format Patent
author Ibrahim, Nor Azowa
Mohd Noor, Siti Mariam
Mohamad, Noor Khairin
Yeong, Shoot Kian
spellingShingle Ibrahim, Nor Azowa
Mohd Noor, Siti Mariam
Mohamad, Noor Khairin
Yeong, Shoot Kian
Method to produce hydrazone from hydrazide
author_facet Ibrahim, Nor Azowa
Mohd Noor, Siti Mariam
Mohamad, Noor Khairin
Yeong, Shoot Kian
author_sort Ibrahim, Nor Azowa
title Method to produce hydrazone from hydrazide
title_short Method to produce hydrazone from hydrazide
title_full Method to produce hydrazone from hydrazide
title_fullStr Method to produce hydrazone from hydrazide
title_full_unstemmed Method to produce hydrazone from hydrazide
title_sort method to produce hydrazone from hydrazide
publishDate 2014
url http://psasir.upm.edu.my/id/eprint/33997/
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