ES255386A1 - Procedure for preparing derivatives of 3,4-dihydro-1,2,4-benzotiadiazina-1,1, -idºxido (Machine-translation by Google Translate, not legally binding)
- Google Patents
Procedure for preparing derivatives of 3,4-dihydro-1,2,4-benzotiadiazina-1,1, -idºxido (Machine-translation by Google Translate, not legally binding)
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Novartis AG
BASF Schweiz AG
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Ciba Geigy AG
Ciba AG
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Publication of ES255386A1publicationCriticalpatent/ES255386A1/en
Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms
(AREA)
Abstract
Process for preparing 3,4-dihydro-1,2,4-benzothiadiazine-1,1-dioxide derivatives of the formula ** (See formula) ** where n means 4 or 5, and of salts thereof, characterized in that in 3,4-dihydro-1,2,4-benzothiadiazine-1,1-dioxides of the formula ** (See formula) ** where n has the above-mentioned meaning, the bivalence C = N is reduced or a 2,4-disulfamyl-aniline of the formula is transformed ** (See formula) ** with an aldehyde of the formula (see formula), or a nitrobenzole of the formula is transformed ** (See formula) ** with an aldehyde of the formula (CH2) n-CH-CH2-CHO, where n has the above-mentioned meaning and is reduced and if desired, salts obtained in the free compounds, or the free compounds obtained in their you go out. (Machine-translation by Google Translate, not legally binding)
ES0255386A1959-02-041960-01-29Procedure for preparing derivatives of 3,4-dihydro-1,2,4-benzotiadiazina-1,1, -idºxido (Machine-translation by Google Translate, not legally binding)
ExpiredES255386A1
(en)
Procedure for obtaining a derivative of 1,1-dioxide from 3,4-hydride-1,2,4-benzotiadiacin (Machine-translation by Google Translate, not legally binding)
Procedure for obtaining a derivative of 1,1-dioxide from 3,4-dihydro-1,2,4-benzotiadiacin (Machine-translation by Google Translate, not legally binding)
Procedure for the manufacture of 3-oxo-3, 4-dihydro-1, 2, 4-bezotiadiazina1, 1-dioxides replaced in the second position (Machine-translation by Google Translate, not legally binding)
Procedure for obtaining 6-chlorine-7-sulfamil-3-4-dihydro-1,2,4-benzotiadiazine-1,1-dioxide (Machine-translation by Google Translate, not legally binding)