Benzotriazole is a bicyclic nitrogen heterocycle formed by the fusion of the benzene ring with the 4,5-positions or the “d” site of 1H-1,2,3-triazole. The benzotriazoles are known as important intermediates in the preparation of organic products such as β-amido ketones, aldehydes, β-ketoesters, ionic liquid, and as reagents for acylation and thioacylation reactions. 1H-Benzotriazoles are also known to exhibit broad spectrum of pharmacological activities. There are numerous benzotriazole-based clinically used drugs in the market for the treatment of various diseases.
Fluorene is a polycyclic aromatic hydrocarbon insoluble in water and soluble in many organic solvents. Fluorenes are one of the most important fluorescent molecules with applications in polymers, electronic devices, sensors, and photochromic materials.
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