Heterocyclic compounds play a significant role in our daily life. Heterocyclic compounds constitute the vast and diverse family of organic compounds. Number of these compounds is growing quickly due to the advances in synthetic research and also their synthetic utility. Some key structures in medicinal chemistry are heterocycles and also, they are often found in many in biomolecules such as enzymes, vitamins, natural products and biological active substances including antifungal, antibacterial, anti-inflammatory, antioxidant, antiallergic, anticonvulsant, anticarcinogenic, enzyme inhibitors, herbicidal, anti-HIV, antidiabetic and insecticidal agents. Many heterocyclic compounds exhibit optoelectronic properties.