公开(公告)号：BR7205871D0

公开(公告)日：1973-06-28

申请号：BR587172

申请日：1972-08-25

Applicant: HOECHST AG

Inventor： MEIMINGER F ,  SPRINGER H

IPC: C09B62/51 ,  C09B29/00 ,  C09B43/00 ,  C09B62/00

Abstract: 1377296 Substituted 1-amino-naphthalenes FARBWERKE HOECHST AG 24 Aug 1972 [26 Aug 1971] 39508/72 Headings C2C and C2P [Also in Division C4] 1 - Amino - 4 - (# - sulphatoethylsulphonyl)- naphthalene is prepared from the corresponding #-hydroxyethylsulphonyl compound and sulphuric acid at room temperature. 1 - Amino - 4 - (# - phosphatoethylsulphonyl)- naphthalene is prepared similarly using polyphosphoric acid instead of sulphuric acid.

公开(公告)号：BR7205808D0

公开(公告)日：1973-06-28

申请号：BR580872

申请日：1972-08-24

Applicant: HOECHST AG

Inventor： MEIMINGER F ,  HUNGER K ,  SPRINGER H

IPC: C09B62/51 ,  C09B29/00 ,  C09B62/00 ,  D06P1/02

Abstract: 1376399 Reactive water-soluble mono-azo dyestuffs FARBWERKE HOECHST AG 29 Aug 1972 [26 Aug 1971] 39989/72 Heading C4P Novel dyestuffs of the formula wherein A is a phenyl, naphthyl, pyrazolyl or acetoacetylarylamide radical substituted by at least one water-solubilizing group and optionally by further substituents and X is a vinyl group or a group of the formula -CH 2 CH 2 Z in which Z is OH or an inorganic or organic radical that can be split off by an alkaline agent, or salts thereof, are prepared by diazotizing an appropriate 2-amino-8-(SO 2 X)-naphthalene and coupling with a compound AH in an aqueous medium. In the products X groups can be interconverted, e.g. -CH 2 CH 2 OH may be esterified to -CH 2 CH 2 OSO 3 H and this may be converted to -CH 2 CH 2 N(C 2 H 5 ) 2 , or to -CH=CH 2 which may in turn be converted to The novel dyestuffs may be used for the dyeing and printing of wool, silk, leather, synthetic polyamide fibres and native or regenerated cellulose fibres.