Asymmetrical 1:2-chromium complex azo dyestuffs

Details Asymmetrical 1:2-chromium complex azo dyestuffs Asymmetrical 1:2-chromium complex azo dyestuffs

1977-02-09

1978-04-25

Higel, Floyd D.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

106 23, 260146R, 260146D, 260146T, 260147, 260148, 260149, 260150, 260196, 260299, C09B 4516, C09B 4526, C09B 6208, C09B 6224

Patent

active

040862232

ABSTRACT:
Asymmetrical 1:2-chromium complex dyestuffs having excellent fastness to light, rubbing, washing, alkali, milling sea water, decatizing and perspiration and having the formula ##STR1## WHEREIN A.sub.1 represents o-phenylene unsubstituted or substituted by halogen, nitro, lower alkyl, lower alkylsulphonyl, phenylsulphonyl, --SO.sub.3.sup.- M.sup.+ or ##STR2## wherein R.sub.1 represents hydrogen, lower alkyl and R.sub.2 represents hydrogen, lower alkyl or phenyl, or by a cellulosic fiber-reactive group, or o-naphthylene unsubstituted or substituted by --SO.sub.3.sup.- M.sup.+,

REFERENCES:
patent: 3169123 (1965-02-01), Neier

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