Utility of Iminoesters and IminoNitriles in synthesis of some new heterocyclic compounds and their application as disperse dyes.

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).