C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 253/30 (2006.01) C07C 213/02 (2006.01) C07C 215/08 (2006.01) C07C 255/12 (2006.01) C07C 255/13 (2006.01)
Patent
CA 2413749
The present invention provides a process for making 3-hydroxyalkanenitriles comprising the steps of reacting an alkenylnitrile, wherein the alkenylnitrile is an alkenyl-2-nitrile or an alkenylnitrile which under reaction conditions isomerizes to form an alkenyl-2-Nitrile, in the presence of base with benzyl alcohol to form a 3-benzyloxyalkanenitrile adduct and then patrially hydrogenating the adduct in the presence of a trace amount of HC1 to form the 3-hydroxyalkanenitrile or fully hydrogenating the adduct for form a 3- hydroxyaminoalkane.
L'invention concerne un procédé relatif à l'élaboration de 3-hydroxyalkanenitriles qui consiste à faire réagir un alcénylnitrile (alcényl-2-nitrile ou alcénylnitrile qui, en conditions de réaction, s'isomérise pour former un alcényl-2-nitrile), en présence d'une base, avec de l'alcool benzylique, pour former un adduit de 3-benzyloxyalkanenitrile, puis à hydrogéner partiellement cet adduit en présense d'une quantité de HC1 à l'état de trace, pour former le 3-hydroxyalkanenitrile, ou bien à hydrogéner totalement cet adduit pour former un 3-hydroxyaminoalkane.
Bennett Jones Llp
E.i. Du Pont de Nemours And Company
Invista Technologies S.a.r.l.
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