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JPS5659730A - Preparation of orthoacetic ester - Google Patents

Preparation of orthoacetic ester

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Publication number
JPS5659730A
JPS5659730AJP13572179AJP13572179AJPS5659730AJP S5659730 AJPS5659730 AJP S5659730AJP 13572179 AJP13572179 AJP 13572179AJP 13572179 AJP13572179 AJP 13572179AJP S5659730 AJPS5659730 AJP 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
Application number
JP13572179A
Other languages
Japanese (ja)
Inventor
Norihiko Masunari
Toshiyuki Kusuda
Nobuhiro Danno
Shuji Ueda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Chemical Corp
Original Assignee
Nippon Synthetic Chemical Industry Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nippon Synthetic Chemical Industry Co LtdfiledCriticalNippon Synthetic Chemical Industry Co Ltd
Priority to JP13572179ApriorityCriticalpatent/JPS5659730A/en
Publication of JPS5659730ApublicationCriticalpatent/JPS5659730A/en
Pendinglegal-statusCriticalCurrent

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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
JP13572179A1979-10-191979-10-19Preparation of orthoacetic esterPendingJPS5659730A (en)

Priority Applications (1)

Application NumberPriority DateFiling DateTitle
JP13572179AJPS5659730A (en)1979-10-191979-10-19Preparation of orthoacetic ester

Applications Claiming Priority (1)

Application NumberPriority DateFiling DateTitle
JP13572179AJPS5659730A (en)1979-10-191979-10-19Preparation of orthoacetic ester

Publications (1)

Publication NumberPublication Date
JPS5659730Atrue JPS5659730A (en)1981-05-23

Family

ID=15158321

Family Applications (1)

Application NumberTitlePriority DateFiling Date
JP13572179APendingJPS5659730A (en)1979-10-191979-10-19Preparation of orthoacetic ester

Country Status (1)

CountryLink
JP (1)JPS5659730A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
CN100503540C (en)2007-10-102009-06-24淄博职业学院 Process for preparing alkyl orthoacetate
CN103910613A (en)*2014-04-112014-07-09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)*2007-04-112014-11-06第一三共株式会社Method for producing neuraminic acid derivative

Cited By (4)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
JP2014208698A (en)*2007-04-112014-11-06第一三共株式会社Method for producing neuraminic acid derivative
CN100503540C (en)2007-10-102009-06-24淄博职业学院 Process for preparing alkyl orthoacetate
CN103910613A (en)*2014-04-112014-07-09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)*2014-04-112016-03-23淄博职业学院 A method for producing trimethyl orthoacetate by utilizing hydrogen chloride in the production of toluene diisocyanate

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