Title:
4,4'-DIAZO COMPOUND OF 3,3'-DIALKOXY-BIPHENYLENE, ITS PRODUCTION AND USE
Document Type and Number:
Japanese Patent JPS61225255
Kind Code:
A
Abstract:
bis-Diazo compounds of the formula (1) in which R is a straight-chain or branched alkyl or alkoxyalkyl radical of 3 to 5 carbon atoms and Y is an anti-diazotate radical -N=N-O<->ME<+>, in which ME represents a potassium atom or sodium atom, or is the radical -N=N-Z, in which Z represents the radical of a water-soluble aliphatic or aromatic amine containing a sulpho and/or carboxyl group are prepared by bisdiazotising a diamine of the formula (2) in which R has the abovementioned meaning in an aqueous, strong, non-oxidising inorganic or organic acid with an alkali metal nitrite at temperatures of about -10 DEG C to about +40 DEG C and converting the bisdiazonium compound formed either into the anti-bisdiazotate of the formula (1) mentioned where Y is -N=N-O<->ME<+> or into a bisdiazoamino compound of the formula (1) where Y is -N=N-Z in a manner known per se, followed by precipitation.
Inventors:
HATSUSOO HERUTERU
KURAUSU FUNGERU
HAINRITSUHI FUREERITSUHI
KURAUSU FUNGERU
HAINRITSUHI FUREERITSUHI
Application Number:
JP6742186A
Publication Date:
October 07, 1986
Filing Date:
March 27, 1986
Export Citation:
Assignee:
HOECHST AG
International Classes:
C09B35/02; C09B35/08; (IPC1-7): C09B35/02
Attorney, Agent or Firm:
Ezaki Mitsuyoshi