GB274700A - Improvements in the manufacture of chloranil and bromanil - Google Patents

Improvements in the manufacture of chloranil and bromanil

Info

Publication number
GB274700A
GB274700A GB2989926A GB2989926A GB274700A GB 274700 A GB274700 A GB 274700A GB 2989926 A GB2989926 A GB 2989926A GB 2989926 A GB2989926 A GB 2989926A GB 274700 A GB274700 A GB 274700A
Authority
GB
United Kingdom
Prior art keywords
bromanil
chloranil
nitrosophenol
mixture
precipitated
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
GB2989926A
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.)
Holliday Co Ltd L B
Original Assignee
Holliday Co Ltd L B
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 Holliday Co Ltd L B filed Critical Holliday Co Ltd L B
Priority to GB2989926A priority Critical patent/GB274700A/en
Publication of GB274700A publication Critical patent/GB274700A/en
Priority to FR648850D priority patent/FR648850A/en
Priority to DEH113030D priority patent/DE533129C/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C46/00—Preparation of quinones
    • C07C46/02—Preparation of quinones by oxidation giving rise to quinoid structures
    • C07C46/06—Preparation of quinones by oxidation giving rise to quinoid structures of at least one hydroxy group on a six-membered aromatic ring

Landscapes

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

Abstract

274,700. Holliday & Co., Ltd., L. B., and Shaw, C. Nov. 26, 1926. Chloranil; bromanil.-Chloranil and bromanil are produced by the chlorination and bromination respectively of p-nitrosophenol. In one example, chlorine is passed into a mixture of p-nitrosophenol and hydrochloric acid which is gradually warmed. The chloranil which is precipitated as, a light brown powder is recrystallized from benzene. In a second example, bromine is added to a mixture of p-nitrosophenol and glacial acetic acid, and the temperature of the mixture is gradually raised as before. The excess bromine is distilled off, and the brown bromanil which is precipitated is dissolved in nitric acid and reprecipitated.
GB2989926A 1926-11-26 1926-11-26 Improvements in the manufacture of chloranil and bromanil Expired GB274700A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB2989926A GB274700A (en) 1926-11-26 1926-11-26 Improvements in the manufacture of chloranil and bromanil
FR648850D FR648850A (en) 1926-11-26 1927-09-05 Improvements in the manufacture of chloranil and bromanile
DEH113030D DE533129C (en) 1926-11-26 1927-09-08 Process for the production of chloranil and bromanil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2989926A GB274700A (en) 1926-11-26 1926-11-26 Improvements in the manufacture of chloranil and bromanil

Publications (1)

Publication Number Publication Date
GB274700A true GB274700A (en) 1927-07-28

Family

ID=10298997

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2989926A Expired GB274700A (en) 1926-11-26 1926-11-26 Improvements in the manufacture of chloranil and bromanil

Country Status (3)

Country Link
DE (1) DE533129C (en)
FR (1) FR648850A (en)
GB (1) GB274700A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0220135A2 (en) * 1985-10-23 1987-04-29 Ciba-Geigy Ag Process for the preparation of chloranile

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0220135A2 (en) * 1985-10-23 1987-04-29 Ciba-Geigy Ag Process for the preparation of chloranile
EP0220135A3 (en) * 1985-10-23 1988-12-28 Ciba-Geigy Ag Process for the preparation of chloranile

Also Published As

Publication number Publication date
FR648850A (en) 1928-12-14
DE533129C (en) 1931-09-09

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