BIS-DIAZONIUM SALT OF 4,4'-DIAMINO-3,3'-DIALKOXY- BIPHENYLENE, MANUFACTURE AND USE

Title:

BIS-DIAZONIUM SALT OF 4,4'-DIAMINO-3,3'-DIALKOXY- BIPHENYLENE, MANUFACTURE AND USE

Document Type and Number:

Japanese Patent JPS61229853

Kind Code:

A

Abstract:

Bis-diazonium salts of the formula (1) …… in which R is a straight-chain or branched alkyl or alkoxyalkyl radical of 3-5 carbon atoms and X<-> is the radical of a strong acid or of a zinc chloride double salt are prepared by diazotising a 4,4'-diamino-3,3'-dialkoxybiphenyl of the formula (2) …… in which R has the meaning mentioned, in an aqueous strong, non-oxidising inorganic or organic acid at temperatures of about -10 DEG C to about +40 DEG C using an alkali metal nitrite and precipitating the bisdiazonium salts formed by adding an alkali metal chloride, alkali metal hydrogen sulphate, alkali metal monosulphonate of 1,5-naphthalenedisulphonic acid, alkali metal tetrafluoroborate or of zinc chloride.

Inventors:

HATSUSOO HERUTERU
KURAUSU FUNGERU
HAINRITSUHI FUREERITSUHI

Application Number:

JP6742086A

Publication Date:

October 14, 1986

Filing Date:

March 27, 1986

Export Citation:

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Assignee:

HOECHST AG

International Classes:

C09B35/02; C07C67/00; C07C241/00; C07C245/20; C09B35/08; D06P1/12; (IPC1-7): C07C113/04; C09B35/02

Attorney, Agent or Firm:

Ezaki Mitsuyoshi

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