JPS5799545A - Preparation of chloroacetaldehyde - Google Patents

Preparation of chloroacetaldehyde

Info

Publication number
JPS5799545A
JPS5799545A JP17617780A JP17617780A JPS5799545A JP S5799545 A JPS5799545 A JP S5799545A JP 17617780 A JP17617780 A JP 17617780A JP 17617780 A JP17617780 A JP 17617780A JP S5799545 A JPS5799545 A JP S5799545A
Authority
JP
Japan
Prior art keywords
alkali
chloroacetaldehyde
acetaldehyde
hydrogen chloride
chloride
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
JP17617780A
Other languages
Japanese (ja)
Inventor
Hiroyuki Hata
Masao Kawamura
Tadaaki Nishi
Kunioki Kato
Shigeo Kimura
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.)
Sumitomo Seika Chemicals Co Ltd
Original Assignee
Seitetsu Kagaku 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 Seitetsu Kagaku Co Ltd filed Critical Seitetsu Kagaku Co Ltd
Priority to JP17617780A priority Critical patent/JPS5799545A/en
Publication of JPS5799545A publication Critical patent/JPS5799545A/en
Pending legal-status Critical Current

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

PURPOSE: To prevent the reduction in yield by the deterioration and increase the concentration, by neutralizing the formed hydrogen chloride as a by-product with an alkali into an alkali chloride in reacting acetaldehyde, etc. with chlorine to give chloroacetaldehyde which is a raw material for medicines.
CONSTITUTION: Acetaldehyde or para-acetaldehyde is reacted with chlorine to prepare chloroacetaldehyde. In the process, the formed hydrogen chloride as a by-product is neutralized with an alkali, preferably sodium hydroxide or calcium hydroxide, to give the alkali chloride, which is then separated by the filtration. The resultant filtrate is then distilled to afford the aimed compound. The molar amount of the alkali is 0.7W1.2times, preferably 0.85W1.0, that of the hydrogen chloride. The alkali may be added continuously or in portions to the reaction mixture.
COPYRIGHT: (C)1982,JPO&Japio
JP17617780A 1980-12-12 1980-12-12 Preparation of chloroacetaldehyde Pending JPS5799545A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17617780A JPS5799545A (en) 1980-12-12 1980-12-12 Preparation of chloroacetaldehyde

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17617780A JPS5799545A (en) 1980-12-12 1980-12-12 Preparation of chloroacetaldehyde

Publications (1)

Publication Number Publication Date
JPS5799545A true JPS5799545A (en) 1982-06-21

Family

ID=16009001

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17617780A Pending JPS5799545A (en) 1980-12-12 1980-12-12 Preparation of chloroacetaldehyde

Country Status (1)

Country Link
JP (1) JPS5799545A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS511688A (en) * 1973-08-20 1976-01-08 Townsend Engineering Co

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS511688A (en) * 1973-08-20 1976-01-08 Townsend Engineering Co

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