Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Organic chemistry help

  1. Jan 10, 2005 #1
    organic chemistry help!!!!!

    how do i name a pentane with a double bond on one end and triple bond on the other end?

    pent-1-ene-4-yne?

    if an octane has a double bond on one carbon and a phenyl group on another carbon . which should i start with first, the phenyl or the double bond?
     
    Last edited: Jan 10, 2005
  2. jcsd
  3. Jan 10, 2005 #2
    Coumpounds with a double and triple bond take the ending -enyne, and the double bond receives lowest-numbering priority. Can you figure it out now?

    Second question: name the phenyl first.
     
  4. Jan 10, 2005 #3

    dextercioby

    User Avatar
    Science Advisor
    Homework Helper

    I think the secind one is x-phenyl-octene.I'm noit sure about the first,though.My first guess would be 4,1-methynpentene,but i'm not sure...

    Daniel.
     
  5. Jan 10, 2005 #4
    I do not think you are correct about the first one...let's let the OP take a shot at it. Keep the ending I mentioned earlier in mind.

    The second one is correct except no dash b/w the two terms; should be x-phenyloctene, AFAIK.
     
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook