JPS572239A - Preparation of 1,4-diactoxybutene - Google Patents
Preparation of 1,4-diactoxybuteneInfo
- Publication number
- JPS572239A JPS572239A JP7596080A JP7596080A JPS572239A JP S572239 A JPS572239 A JP S572239A JP 7596080 A JP7596080 A JP 7596080A JP 7596080 A JP7596080 A JP 7596080A JP S572239 A JPS572239 A JP S572239A
- Authority
- JP
- Japan
- Prior art keywords
- diacetoxybutene
- acetic acid
- isomerization
- dabe
- column
- 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.)
- Granted
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
PURPOSE: To obtain the titled compound efficiently, in high yield, and continuously, by a process including isomerization of 3,4-diacetoxybutene-1 from a mixture comprising 1,4-diactoxybutene-2, 3, 4-diacetoxybutene-1, etc.
CONSTITUTION: A mixture comprising 1,4-diacetoxybutene-2, 3, 4- diacetoxybutene-1(3,4-DABE for short) and acetic acid as main components is fed to the distillation column II, 3,4-DABE and acetic acid whose amounts are more than the equivalent composition are distilled away from the top of the column, and the distillated solution is sent to the isomerization reactor III which is packed with a cation exchange resin. The isomerization is carried out at ≥30°C to <80°C, and the isomerized solution is recycled through the distillation column to collect the desired high- purity compound continuously from the bottom of the column. When the reaction solution contains a large amount of acetic acid, the first and the second distillation columns are used as acetic acid is partially distilled away by the first distillation column, to carry out parferably the isomerization. A-DABE is useful as a raw material for preparing 1,4-butanediol, etc.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7596080A JPS572239A (en) | 1980-06-05 | 1980-06-05 | Preparation of 1,4-diactoxybutene |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7596080A JPS572239A (en) | 1980-06-05 | 1980-06-05 | Preparation of 1,4-diactoxybutene |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS572239A true JPS572239A (en) | 1982-01-07 |
JPH0140816B2 JPH0140816B2 (en) | 1989-08-31 |
Family
ID=13591291
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7596080A Granted JPS572239A (en) | 1980-06-05 | 1980-06-05 | Preparation of 1,4-diactoxybutene |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS572239A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6360005B1 (en) | 1990-12-04 | 2002-03-19 | Applied Materials, Inc. | Apparatus and method for microscopic inspection of articles |
JP2007039400A (en) * | 2005-08-04 | 2007-02-15 | Mitsubishi Chemicals Corp | Method for producing allyl compound |
WO2018105724A1 (en) * | 2016-12-09 | 2018-06-14 | 三菱ケミカル株式会社 | METHOD FOR PURIFYING N-(α-ALKOXYETHYL)FORMAMIDE, METHOD FOR PRODUCING HIGH-PURITY N-(α-ALKOXYETHYL)FORMAMIDE, AND DEVICE FOR PURIFYING N-(α-ALKOXYETHYL)FORMAMIDE |
-
1980
- 1980-06-05 JP JP7596080A patent/JPS572239A/en active Granted
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6360005B1 (en) | 1990-12-04 | 2002-03-19 | Applied Materials, Inc. | Apparatus and method for microscopic inspection of articles |
JP2007039400A (en) * | 2005-08-04 | 2007-02-15 | Mitsubishi Chemicals Corp | Method for producing allyl compound |
WO2018105724A1 (en) * | 2016-12-09 | 2018-06-14 | 三菱ケミカル株式会社 | METHOD FOR PURIFYING N-(α-ALKOXYETHYL)FORMAMIDE, METHOD FOR PRODUCING HIGH-PURITY N-(α-ALKOXYETHYL)FORMAMIDE, AND DEVICE FOR PURIFYING N-(α-ALKOXYETHYL)FORMAMIDE |
JPWO2018105724A1 (en) * | 2016-12-09 | 2019-10-24 | 三菱ケミカル株式会社 | N- (α-alkoxyethyl) formamide purification method, high-purity N- (α-alkoxyethyl) formamide production method, and N- (α-alkoxyethyl) formamide purification device |
US10906868B2 (en) | 2016-12-09 | 2021-02-02 | Mitsubishi Chemical Corporation | Method for purifying N-(alpha-alkoxyethyl)formamide, method for producing high-purity N-(alpha-alkoxyethyl)formamide, and device for purifying N-(alpha-alkoxyethyl)formamide |
Also Published As
Publication number | Publication date |
---|---|
JPH0140816B2 (en) | 1989-08-31 |
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