Abstract: There are described benzophenoneazo dyes of the formula ##STR1## where the ring A can be benzofused and a benzofused ring A can be overbridges,m is 1 or 2,K is the radical of a coupling component,Y is hydrogen or arylazo,one of the two radicals X.sup.1 and X.sup.2 is hydrogen and the other is hydroxysulfonyl,R.sup.1, R.sup.2 and R.sup.3 are independently of the others hydrogen, halogen, C.sub.1 -C.sub.12 -alkyl, cyclohexyl, phenyl, 2-hydroxy-ethylsulfonyl or C.sub.1 -C.sub.4 -alkoxy or, when m is 1 and Y is hydrogen, one of these substituents can also be the radical of the formula ##STR2## where L.sup.1 is a chemical bond or a bridge member, and X.sup.1, X.sup.2, R.sup.4, K and the ring A are each as defined above, andR.sup.4 is hydrogen, halogen or C.sub.1 -C.sub.
Type:
Grant
Filed:
July 27, 1994
Date of Patent:
April 23, 1996
Assignee:
BASF Aktiengesellschaft
Inventors:
Gunther Lamm, Helmut Reichelt, Ortwin Schaffer
Abstract: A process for preparing substituted aromatic amines is provided which comprises contacting a nucleophilic compound and an azo containing compound in the presence of a suitable solvent system, reacting the nucleophilic compound and the azo containing compound in the presence of a suitable base and a controlled amount of protic material at a temperature of about 10.degree. C. to about 150.degree. C. in a confined reaction zone wherein the molar ratio of protic material to base is 0:1 to about 5:1 and reducing the product of the reaction of the nucleophilic compound and the azo containing compound under conditions which produce the substituted aromatic amine. In another embodiment, the substituted aromatic amines of the invention are reductively alkylated to produce alkylated diamines or substituted derivatives thereof.
Abstract: There are described benzophenoneazo dyes of the formula ##STR1## where the ring A can be benzofused and a benzofused ring A can be overbridged,m is 1 or 2,K is the radical of a coupling component,Y is hydrogen or arylazo,one of the two radicals X.sup.1 and X.sup.2 is hydrogen and the other is hydroxysulfonyl,R.sup.1, R.sup.2 and R.sup.3 are independently of the others hydrogen, halogen, C.sub.1 -C.sub.12 -alkyl, cyclohexyl, phenyl, 2-hydroxyethylsulfonyl or C.sub.1 -C.sub.4 -alkoxy or, when m is 1 and Y is hydrogen, one of these substituents can also be the radical of the formula ##STR2## where L.sup.1 is a chemical bond or a bridge member, andX.sup.1, X.sup.2, R.sup.4, K and the ring A are each as defined above, andR.sup.4 is hydrogen, halogen or C.sub.1 -C.sub.
Type:
Grant
Filed:
July 16, 1993
Date of Patent:
January 10, 1995
Assignee:
Basf Aktiengesellschaft
Inventors:
Gunther Lamm, Helmut Beichelt, Ortwin Schaffer