US4731488A
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Vapor-phase hydrogen transfer reaction of carbonyl compound with alcohol
Assignee: Nippon Shokubai Co Ltd
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Filing: 1986-06-06
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Granted: 1988-03-15
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Expires: 2006-06-06
Abstract
Abstract A catalyst for vapor-phase hydrogen transfer reaction between a carbonyl compound having an alkenyl or aryl group and a primary or secondary alcohol, said catalyst having a composition represented by the following general formula Mg.sub.a X.sub.b Y.sub.c O.sub.d wherein X represents at least one element selected from the group consisting of boron, aluminum, silicon, phosphorus, titanium, vanadium, iron, yttrium, zirconium, niobium, tin, antimony, lead, bismuth, lanthanum and cerium, Y represents at least one element selected from the group consisting of alkali metals and alkaline earth metals excepting magnesium, O represents oxygen, and a, b, c and d represent the atomic ratios of the individual elements, and when a is 1, b represents a number of 0.01 to 0.5, c represents a number of 0 to 0.5, and d is a number determined by the atomic valences and atomic ratios of the individual elements.
Inventors
- 👤 Yuuji Shimasaki
- 👤 Youichi Hino
- 👤 Michio Ueshima
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 06:21
CPC Classifications
C; C07; C07C; C07C29/00; C07C29/132; C07C29/136; C07C29/14; B; B01; B01J; B01J23/00; B01J23/02; B01J23/04; B01J23/10; B01J23/14; B01J23/70; B01J23/76; B01J23/78; B01J27/00; B01J27/14; B01J27/16; B01J27/18; C07C29/143; C12; C12C; C12C11/00; C12C11/02; C07C2601/00; C07C2601/12; C07C2601/16
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
164 words
In a vapor-phase hydrogen transfer reaction for reacting in the vapor-phase a carbonyl compound having an alkenyl or aryl group and a primary or secondary alcohol in the presence of a vapor-phase hydrogen transfer catalyst, the improvement comprising carrying out said reaction in the presence of a catalyst having a composition represented by the following formula Mg.sub.a X.sub.b Y.sub.c O.sub.d wherein X represents at least one element selected from the group consisting of boron, aluminum, silicon, phosphorus, titanium, vanadium, yttrium, zirconium, niobium, tin, antimony, lead, bismuth, lanthanum and cerium, Y represents at least one element selected from the group consisting of alkali metals and alkaline earth metals excepting magnesium, O represents oxygen, and a, b, c and d represent the atomic ratios of the individual elements, and when a is 1, b represents a number of 0.01 to 0.5, c represents a number of 0 to 0.5, and d is a number determined by the atomic valences and atomic ratios of the individual elements.
Claim 2
Dependent Claim
164 words
In a vapor-phase hydrogen transfer reaction for reacting in the vapor-phase a carbonyl compound having an alkenyl or aryl group and a primary or secondary alcohol in the presence of a vapor-phase hydrogen transfer catalyst, the improvement comprising carrying out said reaction in the presence of a catalyst having a composition represented by the following formula Mg.sub.a X.sub.b Y.sub.c O.sub.d wherein X represents at least one element selected from the group consisting of boron, aluminum, silicon, phosphorus, titanium, vanadium, yttrium, zirconium, niobium, tin, antimony, lead, bismuth, lanthanum and cerium, Y represents at least one element selected from the group consisting of alkali metals and alkaline earth metals excepting magnesium, O represents oxygen, and a, b, c and d represent the atomic ratios of the individual elements, and when a is 1, b represents a number of 0.01 to 0.5, c represents a number of 0 to 0.5, and d is a number determined by the atomic valences and atomic ratios of the individual elements.
Claim 3
Dependent Claim
55 words
A vapor-phase hydrogen transfer reaction according to claim 1 for preparing an unsaturated aliphatic alcohol which comprises reacting an unsaturated aliphatic aldehyde or ketone having 3 to 10 carbon atoms and a primary or secondary alcohol having 1 to 9 carbon atoms in the vapor-phase in the presence of the catalyst composition of said formula.
Claim 4
Dependent Claim
32 words
The process of claim 2 wherein the unsaturated aliphatic aldehyde or ketone is selected from the group consisting of acrolein, methacrolein, crotonaldehyde, methyl vinyl ketone, senecioaldehyde, 3-buten-1-one, ethyl vinyl ketone and 5-hexen-2-one.
Claim 5
Dependent Claim
30 words
The process of claim 3 wherein the primary or secondary alcohol is selected from the group consisting methanol, ethanol, propanol, isopropanol, benzyl alcohol, phenethyl alcohol, ethylene glycol and 1,4-butane diol.
Claim 6
Dependent Claim
217 words
A vapor-phase hydrogen transfer reaction according to claim 1 for preparing an aromatic alcohol which comprises reacting an aromatic aldehyde or ketone represented by the general formula. ##STR6## wherein each of R 1 , R 2 and R 3 is selected from the class of hydrogen and alkyl groups having 1-2 carbon atoms, R 4 is selected from the class of hydrogen, alkyl groups having 1 to 4 carbon atoms and alkoxy groups having 1 to 4 carbon atoms, n represents an integer in the range of 0 to 3, and each of X 1 and X 2 is selected from the class of hydrogen and ##STR7## but X 1 and X 2 are not hydrogens at the same time, and a primary or secondary alcohol represented by the general formula ##STR8## wherein each of R 5 and R 6 is selected from the class of hydrogen, alkyl groups having 1 to 8 carbon atoms, hydroxyalkyl groups having 1 to 8 carbon atoms, alkenyl groups having 1 to 8 carbon atoms, a phenyl group and a benzyl group, provided that the sum of the number of carbon atoms of R 5 and the number of carbon atoms of R 6 is 0 to 8, in the vapor-phase in the presence of the catalyst composition of said formula.
Claim 7
Dependent Claim
34 words
The process of claim 5 wherein the aromatic aldehyde or ketone is a compound of the formula (I') and is selected from the group consisting of benzaldehyde, acetophenone, phenylacetaldehyde, m-tolualdehyde, anisaldehyde and cumic aldehyde.
Claim 8
Dependent Claim
29 words
The process of claim 5 wherein the aromatic aldehyde or ketone is represented by the formula (I") and is selected from the group consisting of cinnamic aldehyde and atropaldehyde.
Claim 9
Dependent Claim
15 words
The process of claim 1 wherein c represents a number of from 0.01 to 0.05.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-03-15 | 1991-09-14 | 1992-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-03-15 | 1995-09-14 | 1996-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-03-15 | 1999-09-14 | 2000-03-15 | $7700.00 | Window Closed / Lapsed |