GB1460870A - 2-vinyl-5-methyl-1,3-dioxane and its use in the preparation of butanediol and propanediol - Google Patents
2-vinyl-5-methyl-1,3-dioxane and its use in the preparation of butanediol and propanediolInfo
- Publication number
- GB1460870A GB1460870A GB3212175A GB3212175A GB1460870A GB 1460870 A GB1460870 A GB 1460870A GB 3212175 A GB3212175 A GB 3212175A GB 3212175 A GB3212175 A GB 3212175A GB 1460870 A GB1460870 A GB 1460870A
- Authority
- GB
- United Kingdom
- Prior art keywords
- methyl
- dioxane
- propanediol
- vinyl
- vmd
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
- C07C29/132—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of an oxygen containing functional group
- C07C29/136—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of an oxygen containing functional group of >C=O containing groups, e.g. —COOH
- C07C29/14—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of an oxygen containing functional group of >C=O containing groups, e.g. —COOH of a —CHO group
- C07C29/141—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of an oxygen containing functional group of >C=O containing groups, e.g. —COOH of a —CHO group with hydrogen or hydrogen-containing gases
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
- C07C45/27—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation
- C07C45/32—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation with molecular oxygen
- C07C45/33—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation with molecular oxygen of CHx-moieties
- C07C45/34—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation with molecular oxygen of CHx-moieties in unsaturated compounds
- C07C45/35—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation with molecular oxygen of CHx-moieties in unsaturated compounds in propene or isobutene
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D317/00—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms
- C07D317/08—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3
- C07D317/10—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3 not condensed with other rings
- C07D317/14—Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3 not condensed with other rings with substituted hydrocarbon radicals attached to ring carbon atoms
- C07D317/18—Radicals substituted by singly bound oxygen or sulfur atoms
- C07D317/22—Radicals substituted by singly bound oxygen or sulfur atoms etherified
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D319/00—Heterocyclic compounds containing six-membered rings having two oxygen atoms as the only ring hetero atoms
- C07D319/04—1,3-Dioxanes; Hydrogenated 1,3-dioxanes
- C07D319/06—1,3-Dioxanes; Hydrogenated 1,3-dioxanes not condensed with other rings
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12C—BEER; PREPARATION OF BEER BY FERMENTATION; PREPARATION OF MALT FOR MAKING BEER; PREPARATION OF HOPS FOR MAKING BEER
- C12C11/00—Fermentation processes for beer
- C12C11/02—Pitching yeast
Landscapes
- Organic Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- Mycology (AREA)
- Food Science & Technology (AREA)
- Health & Medical Sciences (AREA)
- Microbiology (AREA)
- Bioinformatics & Cheminformatics (AREA)
- General Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Genetics & Genomics (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
1460870 2-Vinyl-5-methyl-1,3-dioxane E I DU PONT DE NEMOURS & CO 31 July 1975 [31 July 1974 (2) 7 Aug 1974] 32121/75 Heading C2C The invention comprises 2-vinyl-5-methyl-1,3 -dioxane VMD and its preparation by reacting 2- methyl-1,3-propanediol (MPD) with acrolein. In a preferred process the acrolein is reacted with MPD in a solvent, e.g. benzene and in the presence of an acid catalyst, e.g. polyphosphoric acid, with the azeotropic distillation of water. In a further preferred process the reaction is effected at 0‹ to 75‹ C. in the presence of a strongly acidic ion exchange resin. The VMD may be connected into a mixture of 1,4-butanediol and 2-methyl-1,3-propanediol by hydroformylating the VMD to produce a mixture of 2(2<SP>1</SP>- propanol) - 5 - methyl - 1,3 - dioxane and 2(3<SP>1</SP> - propanol) - 5 - methyl - 1,3 - dioxane and subsequently hydrolysing and hydrogenating this mixture.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/493,741 US3963754A (en) | 1974-07-31 | 1974-07-31 | 2-Vinyl-5-methyl-1,3-dioxane |
US493740A US3929915A (en) | 1974-07-31 | 1974-07-31 | Process for the production of butanediol |
US05/495,510 US4024159A (en) | 1974-08-07 | 1974-08-07 | Process for the production of liquid acetals |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1460870A true GB1460870A (en) | 1977-01-06 |
Family
ID=27413958
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3212175A Expired GB1460870A (en) | 1974-07-31 | 1975-07-31 | 2-vinyl-5-methyl-1,3-dioxane and its use in the preparation of butanediol and propanediol |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1460870A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4496769A (en) * | 1982-06-11 | 1985-01-29 | Davy Mckee (London) Limited | Process for the preparation of aldehydes by hydroformylation of olefins |
US4496768A (en) * | 1982-06-11 | 1985-01-29 | Davy Mckee Limited | Process for the production of aldehydes by hydroformylation of alpha-olefins |
-
1975
- 1975-07-31 GB GB3212175A patent/GB1460870A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4496769A (en) * | 1982-06-11 | 1985-01-29 | Davy Mckee (London) Limited | Process for the preparation of aldehydes by hydroformylation of olefins |
US4496768A (en) * | 1982-06-11 | 1985-01-29 | Davy Mckee Limited | Process for the production of aldehydes by hydroformylation of alpha-olefins |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |