Back to results
US 11,976,024 B2Granted
Process for preparing cyanoacetates
AssigneeHenkel AG & Co. KGaA
InventorsUmar Farid, Jessica Ramos, Michael Thai Trung King, Justine O'Sullivan, Isidro Cobo Cardenete, Ciara Goff, Cormac Duffy, Marisa Phelan, Barry Burns
Life of this patent
Estimating the term…
Abstract
This invention relates to a process for producing cyanoacetates involving contacting a salt of an alkyl, alkenyl, alkynyl or aryl formyl acetate with a hydroxyl amine acid under appropriate conditions and for a time sufficient to yield a cyanoacetate.
Claims19
A process for the preparation of a cyanoacetate, steps of which comprise:
- (a) contacting an alkyl, alkenyl, alkynyl or aryl acetate with an alkyl, alkenyl, alkynyl or aryl formate in the presence of a base and for a time sufficient to form a salt of an alkyl, alkenyl, alkynyl or aryl formyl acetate;
- (b) optionally, separating therefrom the so formed salt of the alkyl, alkenyl, alkynyl or aryl formyl acetate;
- (c) contacting the so formed salt of the alkyl, alkenyl, alkynyl or aryl formyl acetate with a hydroxyl amine acid under appropriate conditions and for a time sufficient to yield a cyanoacetate;
- (d) optionally, separating therefrom the so formed cyanoacetate.
1 more element
A process for the preparation of a cyanoacetate, steps of which comprise:
- (i) contacting a salt of an alkyl, alkenyl, alkynyl or aryl formyl acetate with a hydroxyl amine acid under appropriate conditions and for a time sufficient to yield a cyanoacetate;
- (ii) optionally, separating therefrom the so formed cyanoacetate.
A process for the preparation of a cyanoacetate, steps of which comprise:
- (i) contacting an alkyl, alkenyl, alkynyl or aryl acetate with an alkyl, alkenyl, alkynyl or aryl formate with a base and for a time sufficient to form a salt of an alkyl, alkenyl, alkynyl or aryl formyl acetate, and after which mixing therewith a hydroxyl amine acid under appropriate conditions and for a time sufficient to yield a cyanoacetate;
- (ii) optionally, separating therefrom the so formed cyanoacetate.
Dependencies are inferred from the claim text.