Common Names of Organic Compounds?

Hello,





After having done quite a bit of research on my own (which yielded no effective results), I would like to ask if anyone knows/can tell me the common names/nicknames of the following organic compounds, if they happen to have any common names of nicknames at all.





1. 1,3,5-tribromobenzene


2. 1-bromo-4-chlorobenzene


3. Cyclooctene


4. Cyclohexene


5. 2,3-dimethyl-2-butene








Thank you,


Nick

Common Names of Organic Compounds?
I don't know of any common names of any of those.





Cyclooctene is sometimes abbreviated as coe and used as a transition metal ligand.