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US 4,539,416 AGranted
Processes for making thioalkyl carboxamides and amines
AssigneeThe Dow Chemical Company
InventorsHarold G. Fravel, Jr., Michael J. Fazio
Life of this patent
Estimating the term…
Abstract
A process for making N-furfurylthioalkyl carboxamide by reacting an oxaz(ol)ine with furfurylmercaptan in the absence of a transition metal catalyst. The carboxamide may then be hydrolyzed to form the 2-furfurylthioalkylamine.
Claims13
A process for making N-furfurylthioalkyl carboxamide by reacting an oxaz(ol)ine with a furfurylmercaptan in the absence of a transition metal catalyst to yield greater than 50 mole percent N-furfurylthioalkyl carboxamide based on either reactant.
A process to form a furfurylthioalkylamine of the formula:
- ##STR13## by contacting a furfurylmercaptan of the formula:
- ##STR14## with an oxaz(ol)ine of the formula:
- ##STR15## wherein R, R' and R" are each independently hydrogen, alkyl, alkenyl, aryl, aralkyl, alkylaryl, or one of these substituted with or interrupted by an oxygen, nitrogen or halogen atom, and m is zero or one, to form a N-furfurylthioalkyl carboxamide in the absence of a transition metal catalyst at a yield of greater than 50 mole percent N-furfurylthioalkyl carboxamide based on either reactant and then hydrolyzing the carboxamide to the amine.
Dependencies are inferred from the claim text.