# US 2012/0083630 A1 · Preparation of homoallyl alcohols in the presence of noncovalently supported ionic liquid phase catalysts under gas-phase reaction conditions

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- Number: US 2012/0083630 A1
- Document ID: US20120083630A1
- Status: Published application
- Kind: A1
- Application number: 13/252,386
- Filed: 2011-10-04
- Published: 2012-04-05
- Earliest claimed: 2010-10-05
- Assignees: BASF SE
- Inventors: CHRISTOPH STOCK; Dirk Gerhard; Klaus Ebel
- Web page: https://patentgrep.com/patent/US20120083630A1

## CPC

- C07C 29/38: by reaction with aldehydes or ketones
- C07C: ACYCLIC OR CARBOCYCLIC COMPOUNDS

## Abstract

Process for preparing homoallyl alcohols by catalyzed reaction of alkenes with aldehydes or ketones, wherein the reaction is carried out in the gas phase in the presence of noncovalently supported ionic liquid phase catalysts.

## Claims

### Claim at position 1

1-10. (canceled)

### Claim 11

A process for preparing homoallyl alcohols by catalyzed reaction of alkenes with aldehydes or ketones, wherein the reaction is carried out in the gas phase in the presence of noncovalently supported ionic liquid phase catalysts.

### Claim 12 (depends on 11)

The process according to claim 11, wherein aqueous formaldehyde is used as aldehyde.

### Claim 13 (depends on 11)

The process according to claim 11, wherein the reaction is carried out in the presence of a Lewis acid.

### Claim 14 (depends on 11)

The process according to claim 11, wherein the catalyst is an imidazolium salt.

### Claim 15 (depends on 11)

The process according to claim 11, wherein the catalyst is hydrophobic.

### Claim 16 (depends on 15)

The process according to claim 15, wherein the catalyst comprises a perfluorinated anion.

### Claim 17 (depends on 11)

The process according to claim 11, wherein aliphatic alkenes having from 3 to 20 carbon atoms are reacted with aqueous formaldehyde.

### Claim 18 (depends on 11)

The process according to claim 11, wherein isobutene is reacted with aqueous formaldehyde.

### Claim 19 (depends on 11)

The process according to claim 11, wherein the process is carried out at temperatures of from ≧50° C. to not more than 350° C.

### Claim 20 (depends on 11)

The process according to claim 11, wherein the alkene is used in a 10-20-fold molar excess based on the aldehyde or the ketone.