The protein chemist now has a choice, for example, between using a polar triazole ring obtained by azide-alkyne cycloaddition or a nonpolar alkene group available from cross-metathesis.

This reaction proceeds at room temperature and does not require sunlight or UV radiation to initiate it. The rapid disappearance of the amber color of the bromine at room temperature is characteristic ...

Alkanes, in contrast, do not have a functional group and are less reactive as a result. Complete combustion of alkenes produces carbon dioxide and water, provided there is a plentiful supply of ...

The longest unbranched chain containing the functional group is the parent molecule, or simply the longest unbranched chain for alkanes. Remember that, the longest chain can go round a bend.