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Diphenyl (4′-(Aryldiazenyl)biphenyl-4-ylamino)(pyridin-3-yl) methylphosphonates as Azo disperse dyes for dyeing polyester fabrics
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نویسنده
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abdel-megeed m.f. ,azaam m.m. ,el-hiti g.a.
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منبع
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journal of chemistry - 2013 - دوره : 2013 - شماره : 0
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چکیده
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Diphenyl (4′-aminobiphenyl-4-ylamino)(pyridin-3-yl)methylphosphonate (1) was synthesized in 88 yield from reaction of pyridine-3-carboxaldehyde with benzidine and triphenylphosphite in the presence of titanium tetrachloride as a catalyst. diazotization of 1 gave the corresponding diazonium salt 2 which was coupled with several hydroxyl or amino compounds to give the corresponding azo dyes 38 in 8288 yields after crystallization. the dyes produced were applied to polyesters as disperse dyes and their fastness properties were elevated. © 2013 mohamed f. abdel-megeed et al.
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آدرس
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department of chemistry,faculty of science,university of tanta, Egypt, department of chemistry,faculty of science,university of tanta, Egypt, department of chemistry,faculty of science,university of tanta,tanta 31527,egypt,school of chemistry,cardiff university,main building,park place, United Kingdom
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Authors
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