ES236705A3 - Procedure for the nitration of compounds of furan with a mixture of nitric acid and anhydride of acetic acid. (Machine-translation by Google Translate, not legally binding)
- Google Patents
Procedure for the nitration of compounds of furan with a mixture of nitric acid and anhydride of acetic acid. (Machine-translation by Google Translate, not legally binding)
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Warner Chilcott Pharmaceuticals Inc
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Norwich Pharmacal Co
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Application filed by Norwich Pharmacal CofiledCriticalNorwich Pharmacal Co
Priority to ES0236705ApriorityCriticalpatent/ES236705A3/en
Publication of ES236705A3publicationCriticalpatent/ES236705A3/en
Organic Low-Molecular-Weight Compounds And Preparation Thereof
(AREA)
Abstract
Process for the nitration of furan compositions with a mixture of nitric acid and acetic acid anhydride, characterized in that an intermediate nitration product is first formed, which is then treated with a base, in order to transform it into the corresponding composition of nitro-furan, with the characteristic, that the mixture obtained by nitration is diluted, without isolation of the nitration intermediate, with water, regulated at ph to 1.79-4.66 by addition of a basic material, and the temperature of the mixture diluted during the addition of the basic material until the intermediate product is completely transformed into the nitro.furane composition is maintained between 25-60º c. (Machine-translation by Google Translate, not legally binding)
ES0236705A1957-07-221957-07-22Procedure for the nitration of compounds of furan with a mixture of nitric acid and anhydride of acetic acid. (Machine-translation by Google Translate, not legally binding)
ExpiredES236705A3
(en)
Procedure for the nitration of compounds of furan with a mixture of nitric acid and anhydride of acetic acid. (Machine-translation by Google Translate, not legally binding)
Procedure for the nitration of compounds of furan with a mixture of nitric acid and anhydride of acetic acid. (Machine-translation by Google Translate, not legally binding)
Procedure for the nitration of compounds of furan with a mixture of nitric acid and anhydride of acetic acid. (Machine-translation by Google Translate, not legally binding)
Procedure for the nitration of compounds of furan with a mixture of nitric acid and anhydride of acetic acid. (Machine-translation by Google Translate, not legally binding)
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Procedure for the continuous recristalization of trinitrotoluol and other nitroexplosives by nitric acid (Machine-translation by Google Translate, not legally binding)