1. Promotion of DAT test prep materials is not allowed.
    Dismiss Notice
  2. Guest, be sure to check out How To Get Into Dental School, our free downloadable PDF with step-by-step details for dental school applicants!
    Dismiss Notice
  3. New SDN Article! Research Basics: Should I Get Involved and How Do I Start?
    Dismiss Notice
  4. Download free Tapatalk for iPhone or Tapatalk for Android for your phone and follow the SDN forums with push notifications.
    Dismiss Notice
DAT Test Prep Material Discussion Free Dental Admissions Guide Article: Research Tapatalk

OChem: Naming Alkanes w/ Two Halogens

Discussion in 'DAT Discussions' started by informatique, May 31, 2008.

Previous Thread Next Thread
Loading...
  1. informatique

    informatique
    2+ Year Member

    Joined:
    Mar 24, 2008
    Messages:
    190
    Likes Received:
    0
    Status:
    Pre-Dental
    I just got "Organic Chemistry Odyssey" and started working on the problems.

    One nomenclature problem has:

    1) 2-bromo-3-flourobutane

    the other one is:

    2) 2-chloro-3-iodobutane

    ??????????

    Electronegativity= F>Cl>Br>I
    Molecular Weight = I>Cl>Br>F

    How am I supposed to name dihaloalkanes?? (*I took out R/S configurations...I just need to know the numbering)
     
    #1 informatique, May 31, 2008
    2. Note: SDN Members do not see this ad.

  2. userah

    userah
    7+ Year Member

    Joined:
    Aug 9, 2007
    Messages:
    555
    Likes Received:
    0
    Status:
    Dental Student
    it's alphabetical. Chlorine before Iodine. Bromine before Fluorine
     
    #2 userah, May 31, 2008
  3. Hugh Mannity

    Hugh Mannity
    2+ Year Member

    Joined:
    May 15, 2008
    Messages:
    228
    Likes Received:
    0
    Status:
    Pre-Dental
    Alphabetical only if each substituent is equally far from the beginning of the end of the chain. Lowest number for first substituent is rule #1 for unbranched alkanes. If equal possibilities, then alphabetical.
     
    #3 Hugh Mannity, May 31, 2008
Previous Thread Next Thread
Loading...
(You must log in or sign up to post here.)

Share This Page