 More Organic Chemistry Chemistry 1/29/15

Drill  Draw the condensed structural formula for:  Heptane  Draw the expanded structural formula for:  Propane  HW: pg. 2 – Naming Hydrocarbons, Structure of Hydrocarbons (front and back)

Objectives  IWBAT  Differentiate between organic and inorganic compounds  Differentiate between and name alkanes, alkenes, and alkynes.  Name branched alkanes, alkenes, and alkynes.  Discuss scheduling.

Alkenes and Alkynes  Alkenes contain a double bond between adjacent carbon atoms.  Alkenes have the general formula C n H 2n.  Alkynes contain a triple bond.  Alkynes have the general formula C n H 2n-2. Copyright © 2007 by Pearson Education, Inc. Publishing as Benjamin Cummings

Learning Check  Draw a condensed structural formula for butene  What do we see is confusing??  Maybe we need another way to name.

 Complex Organic Nomenclature

What do you notice about these molecules?

How about these molecules?

 So how can we name molecules so we know the locations of the side chains and the double/triple bonds?

Naming Rules 1. Count the longest chain of consecutive carbons. 2. Use the appropriate prefix and suffix to name the longest chain (same as before) 3. Number the carbons so the double/triple bonds or side groups have the lowest number  Example:

Naming Rules Continued 4. Write the number of the carbon the double or triple bond begins on in front of the name  Example:

Naming Rules Continued 5. If there is a side chain: - follow the same naming rules -then name the side chain by writing the number of the carbon it is located on - count the number of carbons in the side chain - use the appropriate prefix for the side chains and add the ending -yl  Example:

Naming Rules Continued 6. If there is more than one side chain, the side group names must be written in alphabetical order  Example:

Naming Rules Continued 7. If there are multiples of the same side group, it needs to be denoted using a prefix - See example  Example:

Scheduling Procedure  I have given you a half-sheet on which you will select the course (or courses) you wish to take next year.  Change GT Physics to AP Physics I  I will call students up, individually, to discuss these selections while you work on pg. 1 and 2, today and tomorrow.  You do NOT have to fill out your current Math class or grade—I already have that information.

Scheduling Information Name of CourseMath requirement PhysicsAlgebra II or Trig (or higher) AP Physics IGT Pre-Calculus or Business Calculus (or higher) AP Physics C: Mechanics AP Calculus AB or BC AP ChemistryTrig or Analysis (or higher) AP Biology AP Environmental Science Marine Science Forensic Science Algebra II (or higher) Anatomy and Physiology

You Try!