Drill Name the following Review Drill Check HW Slides: 38 Download presentation Drill: Name the following: Review Drill & Check HW Organic HW • Review PPs 5 – 7. • Complete Test 1 & turn it in tomorrow. Alkenes Alkenes • Hydrocarbons with at least one double bond Alkenes • Each double bond reduces the number of hydrogens in the hydrocarbon by two Alkenes • All alkenes are unsaturated hydrocarbons Unsaturated Hydrocarbons • Contain less than the maximum number of hydrogens Alkenes Naming Alkenes • Number the carbons on the chain; so that, the double bond has the lowest possible number Naming Alkenes • The double bond will always fall between two numbered carbons Naming Alkenes • Apply the lower of those two numbers to the double bond Naming Alkenes 4 2 1 3 2 -butene or Buta-2 -ene Problems 4 2 1 3 4 Geometric Isomers 4 2 1 3 4 Geometric Isomers • Isomers whose arrangement is same side (cis) or opposite side (trans) of a stationary bond Naming Alkenes • Draw a line through the double bond parallel to each of the bonds in the double bond Naming Alkenes 4 2 1 3 Naming Alkenes • If the two ends of the chain are on the same side of the line, it is a cis-double bond Naming Alkenes • If the two ends of the chain are on opposite sides of the line, it is a trans-double bond Naming Alkenes • Place cis or trans at the start of the name in the organic compound trans-2 -butene trans-buta-2 -ene 4 2 1 3 Draw the Following: trans-3 -ethyl-4, 6 dimethyl-5 cyclopentyl-2 -octene Drill: Draw the condensed, skeletal, & stick structures for: cis-3 -ethyl-4, 6 -dimethyl-5 cyclopropyl-2 -octene Organic Chm HW • Test 2 on Cycloalkanes & alkenes is on Friday Review Name: Name: Name: Draw: • trans-1 cyclobutyl-2 methyl-3 -hexene Draw: cis-2 -methyl-1 octylcyclohexene Draw & Name isomers of: • C 5 H 10 Naming Alkenes • Name the alkenes on the board