GB436657A - Improvements in the manufacture and production of aroylbiurets - Google Patents

Improvements in the manufacture and production of aroylbiurets

Info

Publication number
GB436657A
GB436657A GB1143134A GB1143134A GB436657A GB 436657 A GB436657 A GB 436657A GB 1143134 A GB1143134 A GB 1143134A GB 1143134 A GB1143134 A GB 1143134A GB 436657 A GB436657 A GB 436657A
Authority
GB
United Kingdom
Prior art keywords
aroylbiurets
biurets
preparation
product
water
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
GB1143134A
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.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie AG
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 IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Priority to GB1143134A priority Critical patent/GB436657A/en
Publication of GB436657A publication Critical patent/GB436657A/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C273/00Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups
    • C07C273/18Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups of substituted ureas
    • C07C273/1854Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups of substituted ureas by reactions not involving the formation of the N-C(O)-N- moiety
    • C07C273/1863Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups of substituted ureas by reactions not involving the formation of the N-C(O)-N- moiety from urea
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C273/00Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups
    • C07C273/18Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups of substituted ureas
    • C07C273/1872Preparation of compounds comprising a -N-C(O)-N-C(O)-N- moiety

Landscapes

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

Abstract

Aroylbiurets are prepared by reacting aromatic hydrocarbons with allophanic acid chloride in the presence of an acid condensing agent and decomposing the product with water. The biurets are useful intermediates for the preparation of dyestuffs and pharmaceutical compounds. Examples are given of the preparation of benzoyl-, toluyl- and naphthoyl-biurets by heating benzene, toluene and naphthalene respectively with allophanic acid chloride in the presence of aluminium chloride, and treating the product with water.
GB1143134A 1934-04-16 1934-04-16 Improvements in the manufacture and production of aroylbiurets Expired GB436657A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1143134A GB436657A (en) 1934-04-16 1934-04-16 Improvements in the manufacture and production of aroylbiurets

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1143134A GB436657A (en) 1934-04-16 1934-04-16 Improvements in the manufacture and production of aroylbiurets

Publications (1)

Publication Number Publication Date
GB436657A true GB436657A (en) 1935-10-16

Family

ID=9986112

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1143134A Expired GB436657A (en) 1934-04-16 1934-04-16 Improvements in the manufacture and production of aroylbiurets

Country Status (1)

Country Link
GB (1) GB436657A (en)

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