US3878247A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of n-(tertiaryaminoalkyl) acrylamides
Assignee: Texaco Inc
•
Filing: 1974-01-25
•
Granted: 1975-04-15
•
Expires: 1994-01-25
Abstract
Abstract A noncatalytic process for the preparation of N(tertiaryaminoalkyl)acrylamides is disclosed which comprises subjecting a corresponding Beta -aminopropionamide to a temperature of about 180*-300*C. and separating the Ntertiaryaminoalkyl) acrylamide from the reaction product. The corresponding Beta -aminopropionamide compounds can be prepared by mixing and reacting at least 2 moles of a tertiaryaminoalkyl amine with an acrylic acid or ester compound. The inventive process provides the production of the N(tertiaryaminoalkyl)acrylamides in high yields with minimal backaddition or polymerization.
Inventors
- 👤 Philip Hotchkiss Moss
- 👤 Robert Malone Gipson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:36
CPC Classifications
C; C07; C07D; C07D295/00; C07D295/04; C07D295/12; C07D295/125; C07D295/13; B; B01; B01J; B01J39/00; B01J39/08; B01J39/16; B01J39/18; C02; C02F; C02F1/00; C02F1/52; C02F1/54; C08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/50; C08G59/54
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
12 words
AN IMPROVED NONCATALYTIC PROCESS FOR THE PREPARATION OF N-(TERTIARYAMINOALKYL)ACRYLAMIDES OF THE FORMULA
Claim 2
Dependent Claim
12 words
AN IMPROVED NONCATALYTIC PROCESS FOR THE PREPARATION OF N-(TERTIARYAMINOALKYL)ACRYLAMIDES OF THE FORMULA
Claim 3
Dependent Claim
28 words
The process in accordance with Claim 1 wherein said Beta -aminopropionamide is obtained from mixing and reacting at least 2 moles of a tertiaryaminoalkyl amine of the formula
Claim 4
Dependent Claim
26 words
The process in accordance with claim 2 wherein said tertiaryaminoalkyl amine is selected from the group consisting of 3-dimethylaminopropylamine, 4-(aminopropyl) morpholine, N,N-dibutylaminoethylamine, N,N''-dimethylaminoethylamine, aminopropylpiperidine, and 4-(aminoethyl)morpholine.
Claim 5
Dependent Claim
23 words
The process in accordance with claim 2 wherein said tertiaryaminoalkyl amine is 3-dimethylaminopropylamine and said acrylic acid or ester compound is methyl methacrylate.
Claim 6
Dependent Claim
35 words
The process in accordance with claim 4 wherein the corresponding Beta -aminopropionamide is subjected to a temperature of about 210*C. to about 250*C. and a reduced pressure of about 15 mm. to about 75 mm.
Claim 7
Dependent Claim
38 words
The process in accordance with claim 1 wherein said Beta -aminopropionamide is subjected to said temperature in the presence of a polymerization inhibitor selected from the group consisting of hydroquinone, p-methoxyphenol, 2,6-di-t-butyl-p-cresol, N-phenyl-2-naphthylamide, N,N''-diphenyl-p-phenylenediamine, 2-mercapatobenzothiazole, or copper powder.
Claim 8
Dependent Claim
22 words
The process in accordance with claim 1 wherein the product N-(tertiaryaminoalkyl)acrylamide compound is separated from the vapors of the reaction mixture distillation.
Claim 9
Dependent Claim
13 words
An improved noncatalytic process for the continuous preparation of N-(tertiaryaminoalkyl)acrylamides of the formula
Claim 10
Dependent Claim
13 words
An improved noncatalytic process for the continuous preparation of N-(tertiaryaminoalkyl)acrylamides of the formula
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-04-14 | 1978-10-14 | 1979-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-14 | 1982-10-14 | 1983-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-14 | 1986-10-14 | 1987-04-15 | $7700.00 | Window Closed / Lapsed |