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US 2022/0033350 A1Published application
Process for preparing cyanoacetates
AssigneeHenkel IP & Holding GmbH
InventorsCormac Duffy, Justine O'Sullivan, Ciara Goff, Umar Farid, Jessica Ramos, Michael Thai Trung King, Isidro Cobo Cardenete, Marisa Phelan, Barry Burns
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Abstract
This invention relates to a process for producing cyanoacetates using asparagine as a precursor to cyanoacetamide, a staring material to form the cyanoacetates.
Claims29
A process for the preparation of a cyanoacetate, steps of which comprise:
- (a) contacting asparagine with a halogenating agent in an acidic environment to form cyanoacetamide;
- (b) optionally, separating therefrom the so-formed cyanoacetamide;
- (c) contacting the so-formed cyanoacetamide with an alcohol, in the presence of a mineral acid to form a cyanoacetate;
- (d) optionally, separating therefrom the so-formed cyanoacetate.
1 more element
Dependencies are inferred from the claim text.