JPS5448771A - Preparation of 2,3-dihydroxy-1,4-dioxane - Google Patents
Preparation of 2,3-dihydroxy-1,4-dioxaneInfo
- Publication number
- JPS5448771A JPS5448771A JP11371077A JP11371077A JPS5448771A JP S5448771 A JPS5448771 A JP S5448771A JP 11371077 A JP11371077 A JP 11371077A JP 11371077 A JP11371077 A JP 11371077A JP S5448771 A JPS5448771 A JP S5448771A
- Authority
- JP
- Japan
- Prior art keywords
- dehydrating
- pref
- mmhg
- moles
- dihydroxy
- 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.)
- Pending
Links
Landscapes
- Heterocyclic Compounds That Contain Two Or More Ring Oxygen Atoms (AREA)
Abstract
PURPOSE: To prepare the title compound which is powder easily soluble in cold water and having low aging characteristics such a blocking property, useful as a deodorizer, grounting agent, etc, economically, by mixing gloyoxal with a specific glycol and dehydrating under reduced pressure.
CONSTITUTION: 2,3-Dihydroxy-1,4-dioxane is prepared in high purity, by (1) mixing glyoxal (1 mole) wih ethylene glycol (0.9-1.5 moles, pref 1.03-1.2 moles), (2) dehydrating the mixture at 40-70°C under a reduced pressure of ≤150 mmHg, pref.≤100 mmHg, and (3) filtering the precipitated crystals of the objectve compound. The glyoxal used may be a commercial aqueous solution (40-50% aqueous solution), or a concentrated solution obtained by dehydrating thereof
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11371077A JPS5448771A (en) | 1977-09-20 | 1977-09-20 | Preparation of 2,3-dihydroxy-1,4-dioxane |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11371077A JPS5448771A (en) | 1977-09-20 | 1977-09-20 | Preparation of 2,3-dihydroxy-1,4-dioxane |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5448771A true JPS5448771A (en) | 1979-04-17 |
Family
ID=14619187
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11371077A Pending JPS5448771A (en) | 1977-09-20 | 1977-09-20 | Preparation of 2,3-dihydroxy-1,4-dioxane |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5448771A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2487126C1 (en) * | 2011-11-28 | 2013-07-10 | Открытое акционерное общество "Федеральный научно-производственный центр "Алтай" | Method of producing 1,4-dioxane-2,3-diol |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4939998A (en) * | 1972-08-28 | 1974-04-15 |
-
1977
- 1977-09-20 JP JP11371077A patent/JPS5448771A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4939998A (en) * | 1972-08-28 | 1974-04-15 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2487126C1 (en) * | 2011-11-28 | 2013-07-10 | Открытое акционерное общество "Федеральный научно-производственный центр "Алтай" | Method of producing 1,4-dioxane-2,3-diol |
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