United States Patent ( 19 ) Schirmann et al . ( 54 ) PROCESS FOR MAKING AZINES 75 Inventors :

Content Provider	Semantic Scholar
Author	Schirmann, Jean Pierre
Copyright Year	2017
Abstract	A process is described for the production of azines by contacting in the liquid phase ammonia, hydrogen per oxide and a carbonyl compound, either an aldehyde or a ketone. The reaction takes place in the presence of an amide (I) of a monocarboxylic or dicarboxylic acid, wherein at least one of the ionization constants is below 5 X 10, and further in the presence of an inorganic or organic catalyst (II), having the atomic structure H-X-Y=Z, H representing hydrogen, X and Z represent ing oxygen or nitrogen and Y representing carbon, nitrogen, phosphorus, arsenic, antimony, sulphur, sele nium or tellurium. It is possible for X, Y or Z to carry other substituents, providing valency rules are obeyed. The process is carried out in the presence of the ammo nium salt (III) of the carboxylic acid corresponding to the amide (I), at the rate of at least 0.1 mole of the am monium salt (III) per mole of hydrogen peroxide em ployed.
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Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Patent