ES235381A1 - Procedure for preparing compounds of 4-chlorine-5-holobencen 1,3-disulfonamide (Machine-translation by Google Translate, not legally binding)
- Google Patents
Procedure for preparing compounds of 4-chlorine-5-holobencen 1,3-disulfonamide (Machine-translation by Google Translate, not legally binding)
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Merck and Co Inc
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Merck and Co Inc
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Publication of ES235381A1publicationCriticalpatent/ES235381A1/en
Organic Low-Molecular-Weight Compounds And Preparation Thereof
(AREA)
Abstract
Process for preparing 4-chloro-5-halobenzene-1,3-disulfonamide compounds, which comprises heating an O-halophenol with chlorosulfonic acid to obtain 5-halo-4-hydroxybenzene-1,3-disulfonyl chloride, which is it is heated with phosphorus pentachloride and then reacted with ammonia, to produce the corresponding 4-chloro-5-halobenzene-1,3-disulfonamide, wherein the 5-halo substituent is selected from the group comprising the chlorine and bromine atoms. (Machine-translation by Google Translate, not legally binding)
ES0235381A1956-05-021957-04-30Procedure for preparing compounds of 4-chlorine-5-holobencen 1,3-disulfonamide (Machine-translation by Google Translate, not legally binding)
ExpiredES235381A1
(en)
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