CA1173050A - Manufacturing process for preparing disubstituted imidocarbonates - Google Patents
Manufacturing process for preparing disubstituted imidocarbonatesInfo
- Publication number
- CA1173050A CA1173050A CA000417019A CA417019A CA1173050A CA 1173050 A CA1173050 A CA 1173050A CA 000417019 A CA000417019 A CA 000417019A CA 417019 A CA417019 A CA 417019A CA 1173050 A CA1173050 A CA 1173050A
- Authority
- CA
- Canada
- Prior art keywords
- reaction
- carbon atoms
- water
- alkyl radicals
- range
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
A process for the manufacture of a disubstituted imido-carbonate of the formula:-
A process for the manufacture of a disubstituted imido-carbonate of the formula:-
Claims (7)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A process for the manufacture of a disubstituted imidocarbonate of the formula:- II
in which R1 and R2 are the same and are alkyl radicals of 1 to 6 carbon atoms or phenyl radicals, or R1 and R2 are joined to form an ethylene or propylene chain which is optionally substituted by 1 or 2 alkyl radicals each of 1 to 3 carbon atoms, by reaction of cyanogen chloride or cyanogen bromide with the appropriate alcohol or diol, characterised in that the reaction is conducted in a two phase system containing water and a water-immiscible organic solvent.
in which R1 and R2 are the same and are alkyl radicals of 1 to 6 carbon atoms or phenyl radicals, or R1 and R2 are joined to form an ethylene or propylene chain which is optionally substituted by 1 or 2 alkyl radicals each of 1 to 3 carbon atoms, by reaction of cyanogen chloride or cyanogen bromide with the appropriate alcohol or diol, characterised in that the reaction is conducted in a two phase system containing water and a water-immiscible organic solvent.
2. A process as claimed in claim 1 in which the reaction is conducted in the presence of a base.
3. A process as claimed in claim 2 in which the base used is sodium hydroxide.
4. A process as claimed in claim 3 in which the pH of the reaction mixture is in the range 11 to 15.
5. A process as claimed in claim 1 in which the water-immiscible organic solvent is toluene.
6. A process as claimed in claim 5 in which, the temperature of the reaction mixture is in the range -15 to 60°C.
7. A process as claimed in claim 5 in which, the temperature of the reaction mixture is in the range 5 to 25°C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000417019A CA1173050A (en) | 1979-01-26 | 1982-12-03 | Manufacturing process for preparing disubstituted imidocarbonates |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB7902932 | 1979-01-26 | ||
| GB7902932 | 1979-01-26 | ||
| CA000344419A CA1145348A (en) | 1979-01-26 | 1980-01-25 | Manufacturing process for preparing disubstituted (n-cyano-imido) carbonates |
| CA000417019A CA1173050A (en) | 1979-01-26 | 1982-12-03 | Manufacturing process for preparing disubstituted imidocarbonates |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000344419A Division CA1145348A (en) | 1979-01-26 | 1980-01-25 | Manufacturing process for preparing disubstituted (n-cyano-imido) carbonates |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1173050A true CA1173050A (en) | 1984-08-21 |
Family
ID=27166568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000417019A Expired CA1173050A (en) | 1979-01-26 | 1982-12-03 | Manufacturing process for preparing disubstituted imidocarbonates |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1173050A (en) |
-
1982
- 1982-12-03 CA CA000417019A patent/CA1173050A/en not_active Expired
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |