12-1 Naming Alkyl Halides Haloalkanes 0 Commonly called alkyl halides 。 The halogen is treated as a substituent on a parent alkane chain Alkyl halides can be named by following three steps: Step 1 Find the longest chain,and name it as the parent 。 If a double or triple bond is present,it must be included in the parent chain Haloalkanes • Commonly called alkyl halides • The halogen is treated as a substituent on a parent alkane chain Alkyl halides can be named by following three steps: Step 1 Find the longest chain, and name it as the parent • If a double or triple bond is present, it must be included in the parent chain 12-1 Naming Alkyl Halides