发明授权
US4105665A Monomethine dyestuffs 失效
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Monomethine dyestuffs
摘要:
The invention relates to monomethine dyestuffs of the formula ##STR1## wherein Z.sup.1 is alkyl, cycloalkyl, aralkyl or arylZ.sup.2 is hydrogen or Z.sup.1Q is CN, COOR.sup.2 or CONR.sup.3 R.sup.4,R.sup.1 u.R.sup.4 is hydrogen or alkyl,R.sup.2 is alkyl, alkenyl, aralkyl, cycloalkyl or aryl andR.sup.3 is alkyl, cycloalkyl, aralkyl, aryl or acyl.The dyestuffs are suitable for the dyeing of natural and synthetic fibers, which are dyed in orange or red shades with high brilliancy.
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