Process for preparing arylamines
Patent 4764625 Issued on August 16, 1988. Estimated Expiration Date: 
August 16, 2005. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
August 16, 2005. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 2476170 2924620 3065269 3251881 3313854 3314788 InventorsAssigneeApplicationNo. 06/639032 filed on 08/09/1984US Classes:548/442, One of the benzene rings and an additional carbocyclic ring bonded directly to the same acyclic nitrogen564/309, Benzidines564/405Which also contains benzene ringExaminersPrimary: Higel, Floyd D.Assistant: Greason, Carolyn S. Attorney, Agent or FirmInternational ClassesC07D 209/00 (20060101)C07D 209/88 (20060101) AbstractThe process of preparing a tertiary amine by the condensation of a mono- or di-tertiary amine and a mono- or di-iodoaryl compound. Conducting the condensation reaction in the presence of potassium hydroxide, and a copper catalyst, either in the absence of a solvent or with an inert saturated hydrocarbon solvent, in an inert atmosphere, at a temperature between from about 120° C. to about 190° C. for a period of time sufficient to at least substantially complete the reaction.Other References
Field of SearchWhich also contains benzene ring |
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