2-(4-Pentyloxyphenyl)benzothiazole

Abstract

2-(4-Pentyloxyphenyl)benzothiazole was synthesized and its IR, 1 H NMR and MS spectroscopic data are presented.Keywords: 2-(4-pentyloxyphenyl)benzothiazole; heterocyclic fused-ring; ether chainThere has been considerable interest in heterocyclic molecules due to their diversified molecular design and remarkable optical [1-3], liquid crystalline [4] and electronic properties [5]. In view of the importance of these compounds, chemists are prompted to generate the derivatives by introducing different substituents into the existing skeleton of the molecule [6][7][8].Preparation of Benzothiazole 1: This intermediate compound was first reported by Bogert and Corbitt in year 1926 [9]. 2-Aminothiophenol (5.01 g, 40 mmol) and 4-hydroxybenzaldehyde (4.88 g, 40 mmol) in absolute ethanol (40 mL) was heated under reflux for 6 hours. The reaction mixture was subsequently cooled to room temperature, then distilled water (60 mL) was added slowly until the mixture turned cloudy. It was kept overnight at 20 o C and the solid formed was filtered and washed with cold ethanol:water (1:1.5) and dichloromethane. OPEN ACCESS