GB717418A - A process for the production of unsaturated cyclic diand poly-acetals - Google Patents
A process for the production of unsaturated cyclic diand poly-acetalsInfo
- Publication number
- GB717418A GB717418A GB16827/51A GB1682751A GB717418A GB 717418 A GB717418 A GB 717418A GB 16827/51 A GB16827/51 A GB 16827/51A GB 1682751 A GB1682751 A GB 1682751A GB 717418 A GB717418 A GB 717418A
- Authority
- GB
- United Kingdom
- Prior art keywords
- acetals
- acrolein
- unsaturated cyclic
- production
- diallylidene
- 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
- C07D—HETEROCYCLIC COMPOUNDS
- C07D493/00—Heterocyclic compounds containing oxygen atoms as the only ring hetero atoms in the condensed system
- C07D493/02—Heterocyclic compounds containing oxygen atoms as the only ring hetero atoms in the condensed system in which the condensed system contains two hetero rings
- C07D493/04—Ortho-condensed systems
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
Abstract
Unsaturated cyclic di- or poly-acetals are obtained by reaction between a tetrafunctional or higher polyhydroxy alcohol and an unsaturated aldehyde in the presence of an inert solvent and an acid catalyst, the diluent serving to remove the water formed by azeotropic distillation. In examples, pentaerythritol is caused to condense with acrolein, and crotonaldehyde, in presence of catalyst and solvent to give diallylidene and dicrotonylidene diacetals; 2 : 2 : 6 : 6-tetramethylol-cyclohexanol, obtainable by condensation of cyclohexanone with aqueous formaldehyde, and sorbitol are condensed with acrolein, to give a diallylidene acetal alcohol and a triallylidene acetal, respectively. A triacetal of mannitol with acrolein is also referred to. Specification 506,613 is referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE717418X | 1950-07-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB717418A true GB717418A (en) | 1954-10-27 |
Family
ID=6626698
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB16827/51A Expired GB717418A (en) | 1950-07-18 | 1951-07-16 | A process for the production of unsaturated cyclic diand poly-acetals |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB717418A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2972601A (en) * | 1957-08-09 | 1961-02-21 | Union Carbide Corp | Low-viscosity a-stage acroleinpentaerythritol resins |
US2992207A (en) * | 1957-09-16 | 1961-07-11 | Union Carbide Corp | Process for removing water from aldehyde-pentaerythritol resins |
US3010918A (en) * | 1957-09-10 | 1961-11-28 | Du Pont | Chemical compounds |
DE1191829B (en) * | 1962-10-13 | 1965-04-29 | Hoechst Ag | Process for the preparation of unsaturated spiro [4H-1, 3-benzodioxane-8 (5H), 5'-m-dioxane] derivatives |
EP0019999A1 (en) * | 1979-05-02 | 1980-12-10 | Imperial Chemical Industries Plc | Acetals and their preparation |
US5334615A (en) * | 1992-12-17 | 1994-08-02 | Walles Wilhelm E | Oil with bactericidal and virucidal properties |
-
1951
- 1951-07-16 GB GB16827/51A patent/GB717418A/en not_active Expired
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2972601A (en) * | 1957-08-09 | 1961-02-21 | Union Carbide Corp | Low-viscosity a-stage acroleinpentaerythritol resins |
US3010918A (en) * | 1957-09-10 | 1961-11-28 | Du Pont | Chemical compounds |
US2992207A (en) * | 1957-09-16 | 1961-07-11 | Union Carbide Corp | Process for removing water from aldehyde-pentaerythritol resins |
DE1191829B (en) * | 1962-10-13 | 1965-04-29 | Hoechst Ag | Process for the preparation of unsaturated spiro [4H-1, 3-benzodioxane-8 (5H), 5'-m-dioxane] derivatives |
EP0019999A1 (en) * | 1979-05-02 | 1980-12-10 | Imperial Chemical Industries Plc | Acetals and their preparation |
US4459418A (en) * | 1979-05-02 | 1984-07-10 | Imperial Chemical Industries | Preparation of acetals |
US5334615A (en) * | 1992-12-17 | 1994-08-02 | Walles Wilhelm E | Oil with bactericidal and virucidal properties |
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