Organoaluminum compounds and their preparation
阅读：491发布：2022-12-06
专利汇可以提供Organoaluminum compounds and their preparation专利检索，专利查询，专利分析的服务。并且Organoaluminum compounds possessing a vinylic aluminaoxacyclopentanone moiety are described. They are prepared by reacting a nonionic organoaluminum compound possessing an aluminacyclopentene moiety with carbon dioxide in the presence of a stable Lewis base. The compounds possessing the vinylic aluminaoxacyclopentanone moiety yield alkenoic acids of hydrolysis and hydroxymethyl alkenoic acids on oxidation and hydrolysis.，下面是Organoaluminum compounds and their preparation专利的具体信息内容。
1. An organoaluminum compound possessing a 4-vinylic-(1-alumina-2-oxacyclopentan-3-one) moiety, the moiety being attached by means of an aluminum-carbon bond to a hydrocarbon having up to about 18 carbon atoms.
2. A compound according to claim 1 wherein said moiety is the 4-vinyl-(1-alumina-2-oxacyclopentan-3-one) moiety.
3. A compound according to claim 1 wherein said moiety is the 4-isopropenyl-(1-alumina-2-oxacyclopentan-3-one) moiety.
4. A compound according to claim 1 wherein said moiety is the 4-vinyl-4-methyl-(1-alumina-2-oxacyclopentan-3-one) moiety.
5. A compound according to claim 1 wherein said moiety is the 4-(1-ethylvinyl)-(1-alumina-2-oxacyclopentan-3-one) moiety.
6. A compound according to claim 1 wherein said moiety is the 4-isopropenyl-4-methyl-(1-alumina-2-oxacyclopentan-3-one) moiety.
7. A compound according to claim 1 wherein said moiety is the 4-(1-(4-methyl-pent-3-enyl)vinyl)-(1-alumina-2-oxacyclopentan-3-one) moiety.
8. A compound according to claim 1 complexed with a Lewis base.
9. AN ORGANOALUMINUM COMPOUND OF THE FORMULA
10. A compound according to claim 9 wherein R is a lower alkyl group.
11. A compound according to claim 9 wherein R is an isobutyl group.
12. A compound according to claim 9 wherein R is an ethyl group.
13. A compound according to claim 9 complexed with a Lewis base.
14. A compound according to claim 9 complexed with a tertiary amine, a dialkyl ether, a cycloparaffinic monoether having a six-membered ring or a cycloparaffinic diether having a five- or six-membered ring.
15. A compound according to claim 9 complexed with 1,4-dioxane.
16. A compound according to claim 9 wherein the compound is 1-isobutyl-4-isopropenyl-(1-alumina-2-oxacyclopentan-3-one).
17. A compound according to claim 9 wherein the compound is 1-isobutyl-4-vinyl-4-methyl-(1-alumina-2-oxacyclopentan-3-one).
18. A compound according to claim 9 wherein the compound is a mixture of 1-isobutyl-4-isopropenyl-(1-alumina-2-oxa-3-cyclopentan-3-one) and 1-isobutyl-4-vinyl-4-methyl-(1-alumina-2-oxacyclopentan-3-one).
19. A PROCESS OF PREPARING AN ORGANOALUMINUM COMPOUND POSSESSING A 4-VINYLIC-(1-ALUMINA-2-OXACYCLOPENTAN-3-ONE) MOIETY WHICH COMPRISES REACTING (I) A NONIONIC ORGANOALUMINUM COMPOUND POSSESSING AN ALUMINACYCLOPENT-3-ENE MOIETY, THE MOIETY BEING ATTACHED BY MEANS OF AN ALUMINUMCARBON BOND TO A HYDROCARBON GROUP WHICH OPTIONALLY MAY BE SUBSTITUTED BY NO MORE THAN ONE ADDITIONAL SO-BONDED ALUMINACYCLOPENT-3-ENE, WITH (II) CARBON DIOXIDE, THE REACTION BEING CONDUCTED IN THE PRESENCE OF A STABLE LEWIS BASE.
20. The process of claim 19 wherein the Lewis base is a tertiary amine, a dialkyl ether, a cycloparaffinic monoether having six-membered ring, or a cycloparaffinic diether having a five- or six-membered ring.
21. The process of claim 19 wherein the Lewis base is 1,4-dioxane.
22. The process of claim 19 wherein the aluminacyclopent-3-ene moiety has the formula
23. A process of preparing an organoaluminum compound possessing a 4-vinylic-(1-alumina-2-oxacyclopentan-3-one) moiety which comprises reacting in an ether reaction medium carbon dioxide and an organoaluminum compound of the formula
24. The process of claim 23 wherein the ether reaction medium is composed of 1,4-dioxane.
25. The process of claim 23 where R is a lower alkyl group.
26. The process of claim 23 wherein R is a lower alkyl group and the ether reaction medium is composed of at least one dialkyl ether or cycloparaffinic monoether having a six-membered ring or cycloparaffinic diether having a five- or six-membered ring.
27. The process of claim 23 wherein the reaction is carried out at a temperature within the range of from about -80* to about 50*C.
28. The process of claim 23 wherein the carbon dioxide is employed in gaseous form.
29. The process of claim 23 wherein the carbon dioxide is employed in solidified form.
30. The process of claim 23 wherein the reaction is carried out at a pressure within the range of from about 10 to about 100 psi.
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