IE44189L - N-methyl ureas - Google Patents
N-methyl ureasInfo
- Publication number
- IE44189L IE44189L IE762665A IE266576A IE44189L IE 44189 L IE44189 L IE 44189L IE 762665 A IE762665 A IE 762665A IE 266576 A IE266576 A IE 266576A IE 44189 L IE44189 L IE 44189L
- Authority
- IE
- Ireland
- Prior art keywords
- pressures
- degree
- methyl ureas
- temperatures
- ureas
- Prior art date
Links
- 235000013877 carbamide Nutrition 0.000 title abstract 3
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 abstract 1
- 230000002378 acidificating effect Effects 0.000 abstract 1
- 239000004202 carbamide Substances 0.000 abstract 1
- 238000009903 catalytic hydrogenation reaction Methods 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 abstract 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C271/00—Derivatives of carbamic acids, i.e. compounds containing any of the groups, the nitrogen atom not being part of nitro or nitroso groups
- C07C271/06—Esters of carbamic acids
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C273/00—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups
- C07C273/18—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups of substituted ureas
- C07C273/1854—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups of substituted ureas by reactions not involving the formation of the N-C(O)-N- moiety
- C07C273/1863—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups of substituted ureas by reactions not involving the formation of the N-C(O)-N- moiety from urea
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
A method for the preparation of N-methyl ureas is disclosed, the improvement consisting in that the reaction is a catalytic hydrogenation of a mixture of an urea and formaldehyde, carried out in a single-step run and in a definitely acidic environment, contrarily to the conventional art, under high temperatures and pressures. Temperatures of 50.degree.C150.degree.C and pressures of from 20 to 150 kgs./sq.cm. are the prefurred field of action.
[CA1074333A]
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT29962/75A IT1051036B (en) | 1975-12-03 | 1975-12-03 | PROCEDURE FOR THE SYNTHESIS OF N METHYL UREE |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IE44189L true IE44189L (en) | 1977-06-03 |
| IE44189B1 IE44189B1 (en) | 1981-09-09 |
Family
ID=11228764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IE2665/76A IE44189B1 (en) | 1975-12-03 | 1976-12-03 | Method for synthesizing n-methyl ureas |
Country Status (31)
| Country | Link |
|---|---|
| JP (1) | JPS5271419A (en) |
| AR (1) | AR220673A1 (en) |
| AT (1) | AT350582B (en) |
| AU (1) | AU508607B2 (en) |
| BE (1) | BE849073A (en) |
| BG (1) | BG32846A3 (en) |
| BR (1) | BR7608197A (en) |
| CA (1) | CA1074333A (en) |
| CS (1) | CS193070B2 (en) |
| DD (1) | DD127478A5 (en) |
| DE (1) | DE2654928C3 (en) |
| DK (1) | DK536076A (en) |
| EG (1) | EG12262A (en) |
| ES (1) | ES454228A1 (en) |
| FR (1) | FR2333781A1 (en) |
| GB (1) | GB1517820A (en) |
| HU (1) | HU179578B (en) |
| IE (1) | IE44189B1 (en) |
| IN (1) | IN144718B (en) |
| IT (1) | IT1051036B (en) |
| LU (1) | LU76306A1 (en) |
| MX (1) | MX4021E (en) |
| NL (1) | NL167418C (en) |
| NO (1) | NO147274C (en) |
| PH (1) | PH13011A (en) |
| PL (1) | PL109171B1 (en) |
| PT (1) | PT65922B (en) |
| SE (1) | SE7613630L (en) |
| TR (1) | TR18980A (en) |
| YU (1) | YU292276A (en) |
| ZA (1) | ZA767109B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3581541D1 (en) * | 1985-09-10 | 1991-02-28 | Kawaken Fine Chemicals Co | METHOD FOR PRODUCING CYCLIC UREA DERIVATIVES. |
| US4617400A (en) * | 1985-09-11 | 1986-10-14 | Kawaken Fine Chemicals Co., Ltd. | Process for preparing cyclic urea derivatives |
| DE3800083A1 (en) * | 1988-01-05 | 1989-07-13 | Basf Ag | METHOD FOR PRODUCING CYCLIC N, N'-DIMETHYL UREA |
| DE4425696A1 (en) * | 1994-07-20 | 1996-01-25 | Basf Ag | Process for the preparation of 1,3-disubstituted imidazolidinones |
| DE19743760A1 (en) * | 1997-10-02 | 1999-04-08 | Basf Ag | Process for the preparation of cyclic urea derivatives |
-
1975
- 1975-12-03 IT IT29962/75A patent/IT1051036B/en active
-
1976
- 1976-11-26 DK DK536076A patent/DK536076A/en not_active Application Discontinuation
- 1976-11-29 EG EG76748A patent/EG12262A/en active
- 1976-11-29 ZA ZA767109A patent/ZA767109B/en unknown
- 1976-11-30 TR TR18980A patent/TR18980A/en unknown
- 1976-12-01 YU YU02922/76A patent/YU292276A/en unknown
- 1976-12-01 IN IN2141/CAL/76A patent/IN144718B/en unknown
- 1976-12-01 AU AU20145/76A patent/AU508607B2/en not_active Expired
- 1976-12-01 NO NO764100A patent/NO147274C/en unknown
- 1976-12-01 GB GB50196/76A patent/GB1517820A/en not_active Expired
- 1976-12-01 LU LU76306A patent/LU76306A1/xx unknown
- 1976-12-02 HU HU76SA2998A patent/HU179578B/en unknown
- 1976-12-02 AT AT894276A patent/AT350582B/en active
- 1976-12-02 FR FR7636337A patent/FR2333781A1/en active Granted
- 1976-12-02 DD DD196085A patent/DD127478A5/xx unknown
- 1976-12-02 CA CA267,040A patent/CA1074333A/en not_active Expired
- 1976-12-02 PT PT65922A patent/PT65922B/en unknown
- 1976-12-02 BR BR7608197A patent/BR7608197A/en unknown
- 1976-12-02 PH PH19190A patent/PH13011A/en unknown
- 1976-12-03 ES ES454228A patent/ES454228A1/en not_active Expired
- 1976-12-03 SE SE7613630A patent/SE7613630L/en not_active Application Discontinuation
- 1976-12-03 DE DE2654928A patent/DE2654928C3/en not_active Expired
- 1976-12-03 AR AR265719A patent/AR220673A1/en active
- 1976-12-03 BE BE172980A patent/BE849073A/en not_active IP Right Cessation
- 1976-12-03 CS CS767876A patent/CS193070B2/en unknown
- 1976-12-03 BG BG034826A patent/BG32846A3/en unknown
- 1976-12-03 IE IE2665/76A patent/IE44189B1/en unknown
- 1976-12-03 PL PL1976194144A patent/PL109171B1/en unknown
- 1976-12-03 JP JP51144818A patent/JPS5271419A/en active Pending
- 1976-12-03 MX MX765185U patent/MX4021E/en unknown
- 1976-12-03 NL NL7613527.A patent/NL167418C/en not_active IP Right Cessation
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