Benzoxazines are a type of heterocyclic compounds consisting of benzene and oxazine rings. Benzoxazine research is developing rapidly because of the many potential applications of the materials.
In organic chemistry, a carbonyl group is a functional group with the formula C=O, composed of a carbon atom double-bonded to an oxygen atom, and it is divalent at the C atom. It is common to several classes of organic compounds (such as aldehydes, ketones and carboxylic acids), as part of many larger functional groups. A compound containing a carbonyl group is often referred to as a carbonyl compound.