Question

in naming hydrocarbons ..
if the hydocarbon has a double bond .. do i automatically consider it from the parent chain.. or it could be in a branched part

Answers

DrBob222
The longest chain containing the double bond is the parent compound.
Anonymous
if the double bond is not in the longest chain ... ??!!
DrBob222
If it's a double bond C=C (as opposed to a COOH or CHO(aldehyde) or RCOR'(a ketone), the longest chain containing the double bond is the parent. All of the other "longer" chains or parts of them are names as substituents of the parent. Double bonds (C=C double bonds) take precedence over single bonds.
Anonymous
thank you ..

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