Method for preparing alkyl nitrites
OwnerPhilippe Karrer, Sebastien Balzanoinventors
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Abstract
The invention concerns a method for preparing alkyl nitrites of formula (I) R ONO (I) ONO wherein R represents a C1-C20, advantageously C2-C10 linear or branched alkyl group. The invention is characterised in that it consists in gradually and continuously adding in an aqueous medium, an alcohol of formula (II) R OH, R being as defined above, a nitrite of formula (III) M NO2, wherein M represents a metal cation, and a strong acid, so as to form continuously said alkyl nitrite, and in continuously drawing off said alkyl nitrite thus formed from the reaction medium.
Claims12
A method for preparing alkyl nitrites of formula I:
- R—ONO (I)
- in which R represents a C1-C20, advantageously C2-C10, linear or branched alkyl group, characterized in that there are gradually and continuously added to an aqueous medium
- an alcohol of formula II
- R OH (II)
- R being as defined above,
- a nitrite of formula III
- M NO2 (III)
- in which m represents a metal cation, preferably an alkali or alkaline-earth metal cation, and
- a strong acid, preferably inorganic, so as to continuously form said alkyl nitrite, and in that said alkyl nitrite thus formed is continuously drawn off from the reaction medium:
The method as claimed in any one of the preceding claims, characterized in that R represents the n-butyl or isoamyl group.
The method as claimed in any one of the preceding claims, characterized in that the strong acid is hydrochloric or sulfuric acid.
The method as claimed in any one of the preceding claims, characterized in that the alkali metal nitrite is sodium or potassium nitrite.
Dependencies are inferred from the claim text.