C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
260/591.9, 260/2
C07C 131/00 (1980.01)
Patent
CA 1053668
Abstract of the Disclosure A low pressure process for producing sterically hindered ketoximes from the appropriate ketimines has been developed. Sym- metrical and unsymmetrical ketimines are produced by reaction of a tert-alkyl nitrile with a tert-alkyllithium, followed by hydro- lysis of the formed lithium dialkyl ketimine. Symmetrical dial- kyl imines are also formed from tert-alkyl mitriles and sodium, followed by hydrolysis. The imines need not be isolated but can be directly converted to ketoximes by oxidation with hydroxyl- amine hydrochloride. Further oxidation of the ketoximes yields sterically hindered dialkyl iminoxy radicals having relatively good stability.
225161
Ingold Keith U.
Mendenhall G. David
As Represented By The Ministe R. Of The National Research Counci Her Majesty The Queen In Right Of Canada
Canadian Patents And Development Limited
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