الفهرس 
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Abstract
The thesis aimed to prepare of new azo disperse dyes and test
its ability to dyeing different types of fiber as poly ester, wool,
nylon and cotton and its characterization. The structures were
elucidated by Infrared,1H- NMR, mass spectroscopic techniques
and elemental analysis .
I) Using of 2-chloro-N-(3-cyano-4,5,6,7-tetrahydro- benzo-
[b]thiophen-2-yl)acetamide in synthesis of new aromatic amines
which used in preparation of new azo disperse dyes.
I.1-Preparation of ethyl 2-((4-amino-5, 6, 7, 8-tetrahydrobenzo
[4,5] thieno[2,3-d]pyrimidin-2-yl)thio) acetate(3):-
Treatment of (2) with ammonium thiocyanate in dioxane/ethanol
mixture under reflux conditions for four hours afforded ethyl 2-
((4-amino-5, 6, 7, 8-tetrahydrobenzo [4,5] thieno[2,3-
d]pyrimidin-2-yl)thio) acetate(3).Scheme(1).
Scheme(1)
Summary
b
I.1.1) Using free primary amino group of compound (3) in the
formation of azo-dyes:
The diazonium salt of compound (3) was added DROP wise to
different nucleophilic reagents such as N,N dimethylaniline,
resorcinol, and ethyl 2-((4-amino-5,6,7,8-tetrahydrobenzo
[4,5]thieno[2,3-d]pyrimidin-2-yl)thio)acetate and formed three
dyes according to( scheme 2).