1. Not finding help here? Sign up for a free 30min tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Organic Chem

  1. Sep 6, 2008 #1
    This is a question which i just want to make sure of..


    so this would be called butyne
    but can it also be called 1-butyne
  2. jcsd
  3. Sep 6, 2008 #2


    User Avatar
    Science Advisor
    2015 Award


    is 1-butyne. The name butyne is ambiguous because it could refer to 1-butyne or 2-butyne (see below), which are different molecules.

  4. Sep 6, 2008 #3
    alright suppose i was given hexene and i was told to draw it, i would assume the double bond is at 1, right
  5. Sep 6, 2008 #4
    Yes Right, hexene means 1-hexene and the double bond either on the right or on the left of the structure { C(d.bond)CH2...etc) or (CH3...etc.....C(d.bond) }
    Only numbers over 1 are given to determine the location of the double and the triple bonds.
  6. Sep 6, 2008 #5
  7. Sep 7, 2008 #6


    User Avatar

    Staff: Mentor

    That's only a convention, and not a widely spread one. Whenever there is a risk of ambiguity, go for 1-somethingene, as it is much cheaper to add 1- each time on paper then to use incorrent reagent once.
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?

Similar Discussions: Organic Chem
  1. Organic Chem help (Replies: 4)

  2. Basic organic chem q's (Replies: 0)