Patent US4480135A successfully refreshed from Google Patents.
US4480135A
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US
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Process for oxidizing alcohols to aldehydes and/or ketones
Assignee: Anic SpA
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Filing: 1983-07-14
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Granted: 1984-10-30
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Expires: 2003-07-14
Abstract
Abstract A process for oxidizing primary and/or secondary alcohols to the corresponding aldehyde and/or ketone derivatives, consisting of reacting said alcohols with an aqueous solution of hydrogen peroxide in the presence of synthetic zeolites containing titanium atoms, of general formula: xTiO2.(1-x)SiO2, where x lies between 0.0001 and 0.04, and possibly in the presence of one or more solvents, operating at a temperature of between 20 DEG and 100 DEG C.
Inventors
- 👤 Antonio Esposito
- 👤 Carlo Neri
- 👤 Franco Buonomo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:43
CPC Classifications
B; B01; B01J; B01J29/00; B01J29/89; C; C07; C07C; C07C45/00; C07C45/27; C07C45/29; C07C45/294
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
59 words
A process for oxidising primary and/or secondary alcohols to the corresponding aldehyde and/or ketone derivatives, characterised by reacting said alcohols with an aqueous solution of hydrogen peroxide in the presence of synthetic zeolites containing titanium atoms, of the following general formula: xTiO.sub.2.(1-x)SiO.sub.2 where x lies between 0.0001 and 0.04, and possibly in the presence of one or more solvents.
Claim 2
Dependent Claim
59 words
A process for oxidising primary and/or secondary alcohols to the corresponding aldehyde and/or ketone derivatives, characterised by reacting said alcohols with an aqueous solution of hydrogen peroxide in the presence of synthetic zeolites containing titanium atoms, of the following general formula: xTiO.sub.2.(1-x)SiO.sub.2 where x lies between 0.0001 and 0.04, and possibly in the presence of one or more solvents.
Claim 3
Dependent Claim
24 words
A process as claimed in claim 1, characterised in that the oxidation reaction is conducted at a temperature chosen between 20° and 100° C.
Claim 4
Dependent Claim
16 words
A process as claimed in claim 1, wherein the hydrogen peroxide is in dilute aqueous solution.
Claim 5
Dependent Claim
20 words
A process as claimed in claim 1, wherein the hydrogen peroxide in aqueous solution is between 10 and 70% w/v.
Claim 6
Dependent Claim
12 words
A process as claimed in claim 1, wherein the solvent is polar.
Claim 7
Dependent Claim
32 words
A process as claimed in claim 5, wherein the polar solvent is chosen from tertiary alcohols, ketones, ethers and acids, having a number of carbon atoms less than or equal to 6.
Claim 8
Dependent Claim
13 words
A process as claimed in claim 6, wherein the solvent alcohol is tert.butanol.
Claim 9
Dependent Claim
15 words
A process as claimed in claim 6, wherein the solvent ketone is acetone or methylisobutylketone.
Claim 10
Dependent Claim
25 words
A process as claimed in claim 1, wherein the alcohols to be oxidised are chosen from benzyl alcohol, 1-heptanol, 1-octanol, isopropyl alcohol and anise alcohol.
Claim 11
Dependent Claim
26 words
A process as claimed in claim 1, wherein the reaction is conducted in the absence of solvents if the substrate is liquid at the reaction temperature.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-10-30 | 1988-04-30 | 1988-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-10-30 | 1992-04-30 | 1992-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-10-30 | 1996-04-30 | 1996-10-30 | $7700.00 | Window Closed / Lapsed |