CA1171431A
Expired / Lapsed
CA
⏱️ 0.0 years remaining
Process for preparing arylamines
Assignee: Xerox Corp
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Filing: 1981-01-29
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Granted: 1984-07-24
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Expires: 2001-01-29
Abstract
Abstract ABSTRACT OF THE DISCLOSURE The process of preparing tertiary amine by the condensation of d mono- or di-tertiary amine and a mono- or di-iodaryl compound. Conduct-ing 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.
Inventors
- 👤 S. Richard Turner
- 👤 John F. Yanus
- 👤 Dale S. Renfer
Bibliographic Details
Application Number
—
Jurisdiction
CA
Data Source
google_patents
Last Synchronized
2026-10-30 05:11
CPC Classifications
C; C07; C07D; C07D209/00; C07D209/56; C07D209/80; C07D209/82; C07D209/88; C07C; C07C2603/00; C07C2603/02; C07C2603/40; C07C2603/42; C07C2603/50
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
92 words
WHAT IS CLAIMED IS: l. In the process of preparing a tertiary amine free of -NO2 groups by the the condensation of a mono- or di-secondary amine, and a mono- or di-iodoaryl compound, the improvement comprising conducting the condensation reaction in the presence of potassium hydrox-ide, and a copper catalyst, and 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.
Claim 2
Dependent Claim
12 words
The process of Claim 1 wherein the copper catalyst is copper powder.
Claim 3
Dependent Claim
21 words
The process of Claim 2 wherein the reaction is carried out at a temperature between from about 135°C to about 165°C.
Claim 4
Dependent Claim
15 words
The process of Claim 3 wherein the solvent is a mixture of C13-C15 aliphatic hydrocarbons.
Claim 5
Dependent Claim
17 words
The process of Claim 3 wherein the reaction is carried out in the absence of a solvent.
Claim 6
Dependent Claim
62 words
The process of Claim 1 wherein the mono secondary amine has the general formula R2R3NH wherein R2 and R3 are the same or different members selected from the group consisting of alkyl, alkenyl, aryl, alkaryl and aralkyl and the di-secondary amine has the general formula R4HN R,-NHR4 wherein R1 is a divalent arylene or alkylidene group and R4 is an aryl group.
References Cited (Backward Citations)
No citation records indexed.
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