Claims
- 1. A process for the production of an azomethine, which comprises reacting a saturated or unsaturated aliphatic, cycloaliphatic, aromatic or heterocyclic aldehyde with ammonia and hydrogen at atomspheric pressure and at a temperature of 20.degree. to 200.degree. C in the presence of a catalyst containing at least one metal of group VIII B of the periodic table.
- 2. The process according to claim 1, wherein said catalyst additionally contains a group VI B metal.
- 3. The process according to claim 2, wherein said group VI B metal is chromium.
- 4. The process according to claim 1, wherein said group VIII B metal is iron, cobalt or nickel.
- 5. The process according to claim 2, wherein said group VIII B metal is iron, cobalt or nickel.
- 6. The process according to claim 3, wherein said group VIII B metal is iron, cobalt or nickel.
- 7. The process according to claim 4, wherein said group VIII B metal is nickel.
- 8. The process according to claim 5, wherein said group VIII B metal is nickel.
- 9. The process according to claim 6, wherein said group VIII B metal is nickel.
- 10. The process according to claim 1, wherein said temperature is 80.degree. to 140.degree. C.
- 11. The process according to claim 1, wherein the aldehyde ammonia and hydrogen are reacted in at least stoichiometric amounts.
- 12. The process according to claim 1, wherein the aldehyde, ammonia and hydrogen are respectively present in a molar ratio of 2 : 1 : 1.
- 13. The process according to claim 1, wherein the ammonia and hydrogen are respectively present in a molar ratio of 1 : 1 and are respectively employed in an amount in excess of the stoichiometric amount required for reaction with the aldehyde.
- 14. The process according to claim 1, wherein said catalyst is employed in an amount about 5% to about 10% by weight, based upon the amount of the aldehyde.
Priority Claims (1)
Number |
Date |
Country |
Kind |
2205791 |
Jan 1973 |
DT |
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Parent Case Info
This is a Continuation application of Ser. No. 326,181, filed Jan. 24, 1973, now abandoned, and which claims the priority of German P 22 05 791,6-42, filed Feb. 8, 1972.
US Referenced Citations (1)
Number |
Name |
Date |
Kind |
2422013 |
Haury et al. |
Jun 1947 |
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Continuations (1)
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Number |
Date |
Country |
Parent |
326181 |
Jan 1973 |
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