GB661746A - Improvements in or relating to the production of barbituric acids - Google Patents

Improvements in or relating to the production of barbituric acids

Info

Publication number
GB661746A
GB661746A GB31540/49A GB3154049A GB661746A GB 661746 A GB661746 A GB 661746A GB 31540/49 A GB31540/49 A GB 31540/49A GB 3154049 A GB3154049 A GB 3154049A GB 661746 A GB661746 A GB 661746A
Authority
GB
United Kingdom
Prior art keywords
ethyl
metabromphenyl
metabromphenylacetate
relating
production
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
GB31540/49A
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.)
Rhone Poulenc SA
Original Assignee
Rhone Poulenc SA
Societe des Usines Chimiques Rhone Poulenc SA
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 Rhone Poulenc SA, Societe des Usines Chimiques Rhone Poulenc SA filed Critical Rhone Poulenc SA
Publication of GB661746A publication Critical patent/GB661746A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C253/00—Preparation of carboxylic acid nitriles
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C253/00—Preparation of carboxylic acid nitriles
    • C07C253/14—Preparation of carboxylic acid nitriles by reaction of cyanides with halogen-containing compounds with replacement of halogen atoms by cyano groups
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C253/00—Preparation of carboxylic acid nitriles
    • C07C253/30—Preparation of carboxylic acid nitriles by reactions not involving the formation of cyano groups

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

5-metabromphenyl-5-ethyl barbituric acid is obtained by converting metabromobenzyl chloride into the cyanide with potassium cyanide, saponifying and esterifying with ethyl alcohol, condensing with ethyl oxalate, eliminating carbon monoxide from the product, ethylating with ethyl halide and finally condensing the ethyl metabromphenyl-ethyl-malonate obtained with urea in methyl alcohol. The details of the reactions are given in an example. Intermediate products obtained as described above are ethyl metabromphenylacetate, sodium ethyl oxalyl - metabromphenylacetate and sodium ethyl metabromphenyl-malonate.
GB31540/49A 1948-12-20 1949-12-08 Improvements in or relating to the production of barbituric acids Expired GB661746A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR661746X 1948-12-20

Publications (1)

Publication Number Publication Date
GB661746A true GB661746A (en) 1951-11-28

Family

ID=9011066

Family Applications (1)

Application Number Title Priority Date Filing Date
GB31540/49A Expired GB661746A (en) 1948-12-20 1949-12-08 Improvements in or relating to the production of barbituric acids

Country Status (1)

Country Link
GB (1) GB661746A (en)

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