JPS5659730A - Preparation of orthoacetic ester - Google Patents
Preparation of orthoacetic esterInfo
- Publication number
- JPS5659730A JPS5659730A JP13572179A JP13572179A JPS5659730A JP S5659730 A JPS5659730 A JP S5659730A JP 13572179 A JP13572179 A JP 13572179A JP 13572179 A JP13572179 A JP 13572179A JP S5659730 A JPS5659730 A JP S5659730A
- Authority
- JP
- Japan
- Prior art keywords
- reaction
- reactor
- methanol
- alcoholysis
- ethanol
- 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
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
PURPOSE: To obtain the titled substance from an organic layer, by reacting acetonitril with methanol, etc. and hydrogen chloride, subjecting the reaction product to alcoholysis at a pH adjusted with added ammonia, and bringing the alcoholysis product into contact with an aqueous alkali.
CONSTITUTION: Acetonitrile is reacted with methanol or ethanol and hydrogen chloride at a molar ratio of 1:0.3W0.6:1.0W1.5 in the first reactor, and the reaction solution is then introduced into the second reactor. 0.4W0.8mol methanol or ethanol is added to the second reactor to continue the reaction. The resultant acetimid ether hydrochloride is subjected to alcoholysis at a pH adjusted to 0.5W3.5 by addition of ammonia to produce the titled substance, which is then brought into contact with an aqueous alkali to collect the aimed substance from the organic layer.
EFFECT: Continuous supply of HCl and quantitative transfer of the reaction solution are possible, and the continuous reaction can be carried out. Purifying operation can be carried out efficiently with reduced load of waste water treatment.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13572179A JPS5659730A (en) | 1979-10-19 | 1979-10-19 | Preparation of orthoacetic ester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13572179A JPS5659730A (en) | 1979-10-19 | 1979-10-19 | Preparation of orthoacetic ester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5659730A true JPS5659730A (en) | 1981-05-23 |
Family
ID=15158321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13572179A Pending JPS5659730A (en) | 1979-10-19 | 1979-10-19 | Preparation of orthoacetic ester |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5659730A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103910613A (en) * | 2014-04-11 | 2014-07-09 | 淄博职业学院 | Method for producing trimethyl orthoacetate by utilizing hydrogen chloride (HCl) generated during production of toluene diisocynate (TDI) |
| JP2014208698A (en) * | 2007-04-11 | 2014-11-06 | 第一三共株式会社 | Method for producing neuraminic acid derivative |
-
1979
- 1979-10-19 JP JP13572179A patent/JPS5659730A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014208698A (en) * | 2007-04-11 | 2014-11-06 | 第一三共株式会社 | Method for producing neuraminic acid derivative |
| CN103910613A (en) * | 2014-04-11 | 2014-07-09 | 淄博职业学院 | Method for producing trimethyl orthoacetate by utilizing hydrogen chloride (HCl) generated during production of toluene diisocynate (TDI) |
| CN103910613B (en) * | 2014-04-11 | 2016-03-23 | 淄博职业学院 | A kind of method utilizing the hydrogen chloride production trimethyl orthoacetate producing tolylene diisocyanate |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE3361615D1 (en) | Process for performing chemical reactions with participation of atomic hydrogen | |
| JPS5659730A (en) | Preparation of orthoacetic ester | |
| DE3263882D1 (en) | 11-deoxoglycyrrhetinic acid hydrogen maleate, process for its production, and its use as a medicine | |
| ES2130694T3 (en) | TREATMENT OF A CHEMICAL PRODUCT. | |
| JPS5265226A (en) | Preparation of halogenosilanes | |
| FR2417470A1 (en) | Anhydrous sodium perborate prepn. - by dehydration of hydrated sodium perborate in presence of hot, decarbonated, dry air | |
| JPS5368725A (en) | Preparation of glycollonitrile | |
| JPS53128142A (en) | Method and apparatus for processing waste water | |
| MY118098A (en) | Use of shaped bodies as a catalyst for the production of caprolactam. | |
| JPS53136591A (en) | Preparation of adenosine-5'-triphosphoric acid | |
| KR920011575A (en) | Surface treatment method of chemical reactor | |
| JPS554349A (en) | Preparation of creatine | |
| JPS5310364A (en) | Decomposing method of ammonia | |
| JPS52108923A (en) | Process for preparing acidic salt of cis-epoxy succinic acid | |
| JPS5233353A (en) | Starch containing waste solution treatment method | |
| JPS549189A (en) | Method of thermochemical producing hydrogen and oxygne from water | |
| SU1823419A1 (en) | Method of synthesis of vinylidene fluoride | |
| JPS55121842A (en) | Chemical reduction process | |
| JPS55121839A (en) | Catalyst for chemical conversion of organic in aqueous solution | |
| JPS5581786A (en) | Treatment method for waste water | |
| JPS5697245A (en) | Preparation of carboxylic acid | |
| JPS56169102A (en) | Generating method for hydrogen in intermediate reaction step of thermochemical multistage cycle using nickel, iodine and sulfur dioxide as circulating reactive substances | |
| JPS55154315A (en) | Separation and recovery of ammonium sulfate and ammonium nitrate from byproduct of waste gas treatment by radiation | |
| JPS54124891A (en) | Thermochemical decomposition of water | |
| JPS5363323A (en) | Preparation of 3,5-dichloroaniline |