ES206645A1 - Procedure for obtaining hydrazid from paraaminosalicylic acid (Machine-translation by Google Translate, not legally binding) - Google Patents

Procedure for obtaining hydrazid from paraaminosalicylic acid (Machine-translation by Google Translate, not legally binding)

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Publication number
ES206645A1
ES206645A1 ES206645A ES206645A ES206645A1 ES 206645 A1 ES206645 A1 ES 206645A1 ES 206645 A ES206645 A ES 206645A ES 206645 A ES206645 A ES 206645A ES 206645 A1 ES206645 A1 ES 206645A1
Authority
ES
Spain
Prior art keywords
obtaining
translation
para
machine
legally binding
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
ES206645A
Other languages
Spanish (es)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DANIEL MANGRANE S A
Original Assignee
DANIEL MANGRANE S A
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by DANIEL MANGRANE S A filed Critical DANIEL MANGRANE S A
Priority to ES206645A priority Critical patent/ES206645A1/en
Publication of ES206645A1 publication Critical patent/ES206645A1/en
Expired legal-status Critical Current

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Process for obtaining para-aminosalicylic acid hydrazide consisting essentially of adding to a 40% aqueous solution of hydrazine hydrate, para-aminosalicylic acid ethyl ester in an approximate proportion of 1 to 3 moles respectively by stirring and heating the assembly in a bath the mixture was then boiled to achieve complete dissolution of the hydrazine hydrate after which the water in the reaction mass was evaporated in vacuo and at low temperature to dryness by recrystallizing the solid product several times in hot ethyl alcohol and finally obtaining the para-hydrazide. Aminosalicylic in the form of solid crystalline structure body ** (see formula) **: (Machine-translation by Google Translate, not legally binding)
ES206645A 1952-11-29 1952-11-29 Procedure for obtaining hydrazid from paraaminosalicylic acid (Machine-translation by Google Translate, not legally binding) Expired ES206645A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES206645A ES206645A1 (en) 1952-11-29 1952-11-29 Procedure for obtaining hydrazid from paraaminosalicylic acid (Machine-translation by Google Translate, not legally binding)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES206645A ES206645A1 (en) 1952-11-29 1952-11-29 Procedure for obtaining hydrazid from paraaminosalicylic acid (Machine-translation by Google Translate, not legally binding)

Publications (1)

Publication Number Publication Date
ES206645A1 true ES206645A1 (en) 1953-01-16

Family

ID=65654985

Family Applications (1)

Application Number Title Priority Date Filing Date
ES206645A Expired ES206645A1 (en) 1952-11-29 1952-11-29 Procedure for obtaining hydrazid from paraaminosalicylic acid (Machine-translation by Google Translate, not legally binding)

Country Status (1)

Country Link
ES (1) ES206645A1 (en)

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