GB573720A - Improvements in or relating to the production of derivatives of propionaldehyde - Google Patents

Improvements in or relating to the production of derivatives of propionaldehyde

Info

Publication number
GB573720A
GB573720A GB768440A GB768440A GB573720A GB 573720 A GB573720 A GB 573720A GB 768440 A GB768440 A GB 768440A GB 768440 A GB768440 A GB 768440A GB 573720 A GB573720 A GB 573720A
Authority
GB
United Kingdom
Prior art keywords
acrolein
propionaldehyde
halogen
chlorine
extracted
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.)
Expired
Application number
GB768440A
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.)
Distillers Co Yeast Ltd
Distillers Co Ltd
Original Assignee
Distillers Co Yeast Ltd
Distillers 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
Priority to BE473303D priority Critical patent/BE473303A/xx
Application filed by Distillers Co Yeast Ltd, Distillers Co Ltd filed Critical Distillers Co Yeast Ltd
Priority to GB768440A priority patent/GB573720A/en
Publication of GB573720A publication Critical patent/GB573720A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C47/00—Compounds having —CHO groups
    • C07C47/02—Saturated compounds having —CHO groups bound to acyclic carbon atoms or to hydrogen
    • C07C47/19—Saturated compounds having —CHO groups bound to acyclic carbon atoms or to hydrogen containing hydroxy groups
    • C07C47/195—Saturated compounds having —CHO groups bound to acyclic carbon atoms or to hydrogen containing hydroxy groups containing halogen
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
    • C07C45/61—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups
    • C07C45/64—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by introduction of functional groups containing oxygen only in singly bound form
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
    • C07C45/61—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups
    • C07C45/65—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by splitting-off hydrogen atoms or functional groups; by hydrogenolysis of functional groups

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Acrolein is reacted with hypohalogenous acid at a temperature not above 30 DEG C. to produce a - halogen - b - hydroxy - propionaldehyde which may be converted to glycerol by saponification with weak alkali and subsequent hydrogenation of the glyceraldehyde. Preferably, the reaction with hypohalogenous acid is effected in the presence of enough water to dissolve all the acrolein; otherwise there is reduced yield which, however, is mitigated by agitation. The halogen hydroxy propionaldehyde may be salted out as it is produced or may be extracted with a solvent. It may be converted to halogen-acrolein by distillation with steam. In examples: (1) chlorine is introduced into an aqueous solution of acrolein at 2 DEG C. and the product is extracted with ethyl acetate, preferably with the addition of salt; it is saponified by heating at 40 DEG C. with sodium bicarbonate; (2) chlorine is passed into aqueous acrolein at 10 DEG C., the product being salted out with sodium sulphate; the mother-liquor is distilled, yielding a -chloracrolein.
GB768440A 1940-04-29 1940-04-29 Improvements in or relating to the production of derivatives of propionaldehyde Expired GB573720A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
BE473303D BE473303A (en) 1940-04-29
GB768440A GB573720A (en) 1940-04-29 1940-04-29 Improvements in or relating to the production of derivatives of propionaldehyde

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB768440A GB573720A (en) 1940-04-29 1940-04-29 Improvements in or relating to the production of derivatives of propionaldehyde

Publications (1)

Publication Number Publication Date
GB573720A true GB573720A (en) 1945-12-04

Family

ID=9837806

Family Applications (1)

Application Number Title Priority Date Filing Date
GB768440A Expired GB573720A (en) 1940-04-29 1940-04-29 Improvements in or relating to the production of derivatives of propionaldehyde

Country Status (2)

Country Link
BE (1) BE473303A (en)
GB (1) GB573720A (en)

Also Published As

Publication number Publication date
BE473303A (en)

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