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
GB4520566A
Inventor
James Andrew Gibson
James Brown Parker
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
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
Priority claimed from GB16879/65Aexternal-prioritypatent/GB1065946A/en
Application filed by Imperial Chemical Industries LtdfiledCriticalImperial Chemical Industries Ltd
Priority to GB4520566ApriorityCriticalpatent/GB1065947A/en
Publication of GB1065947ApublicationCriticalpatent/GB1065947A/en
C07D241/00—Heterocyclic compounds containing 1,4-diazine or hydrogenated 1,4-diazine rings
C07D241/02—Heterocyclic compounds containing 1,4-diazine or hydrogenated 1,4-diazine rings not condensed with other rings
C07D241/04—Heterocyclic compounds containing 1,4-diazine or hydrogenated 1,4-diazine rings not condensed with other rings having no double bonds between ring members or between ring members and non-ring members
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Chemical & Material Sciences
(AREA)
Organic Chemistry
(AREA)
Pharmaceuticals Containing Other Organic And Inorganic Compounds
(AREA)
Abstract
The novel compounds diacetoxy-dinitrato-1 4-dinitropiperazine and tetra-acetoxy-1,4 are prepared by reacting an alkali metal salt of 2,3,5,6-tetrahydroxy piperazinedisulphonic acid with a nitrating mixture of nitric acid and acetic anhydride, the amount of each product depending on the reaction temperature, a temperature of about 30 DEG C. being suitable for production of the former compound, and -10 DEG to +5 DEG C. for the production of the latter compound.
Procedure for the preparation of new products of sulfonilarilurea and its employment as agents to combat the bad herbs. (Machine-translation by Google Translate, not legally binding)