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US 2019/0284131 A1Published application
Process for the preparation of N-alkyl-nitratoethylnitramines
AssigneeNitrochemie Aschau GmbH
InventorsAnian NIEDER, Tobias WUENSCHE, Anne Theresa FRIEDRICHS, Johannes KAINZ, Alexander HUBER
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Abstract
The present invention relates to a continuous process for the preparation of N-alkyl-nitratoethylnitramines (e.g. NENA compounds, DINA).
Claims20
A process for the preparation of a compound of the formula (I):
- wherein R is an alkyl group having from 1 to 6 carbon atoms or a group of the formula —CH2—CH2—O—NO2, or of mixtures of two or more such compounds, which process comprises the reaction of a compound of the formula (II):
- wherein R′ is an alkyl group having from 1 to 6 carbon atoms or a group of the formula —CH2—CH2—OH, or the reaction of corresponding mixtures of two or more such compounds,
- with nitric acid and
- then with a mixture of at least one acid anhydride and a chloride-containing catalyst in a continuous process,
- characterised in that the reactions are carried out at a pressure of from 0.5 bar above atmospheric pressure up to a pressure of 80 bar above atmospheric pressure.
2 more elements
Process for the preparation of a compound of the formula (I):
- wherein R is an alkyl group having from 1 to 6 carbon atoms or a group of the formula —CH2—CH2—O—NO2, or of mixtures of two or more such compounds, which process comprises the reaction of a compound of the formula (II):
- wherein R′ is an alkyl group having from 1 to 6 carbon atoms or a group of the formula —CH2—CH2—OH, or the reaction of corresponding mixtures of two or more such compounds,
- with nitric acid and
- then with a mixture of at least one acid anhydride and a chloride-containing catalyst in a continuous process,
- characterized in that the reactions are carried out at a pressure sufficient to prevent the formation of a gas phase within the reactor during the reactions.
2 more elements
Dependencies are inferred from the claim text.