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Abstract The work is concerned with the preparation of new types of benzothiazole and naphthothiazole dyes. The thesis is divided into three chapters. Chapter 1: Is a review on the chemistry of benzothiazoles, their physical and chemical properties and the application of the thiazole nucleus for the preparation of thiazole dyes. Chapter 2: includes a discuusion on the preparation and application of nitrobenzothiazoles (XCL) and nitroonapthothiazole (XCIII). |