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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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. |
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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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1643831028002848768 |