CHAPTER 6

CHAPTER 6 - 6. Alkenes: Structure and Reactivity Based on...

Info iconThis preview shows pages 1–10. Sign up to view the full content.

View Full Document Right Arrow Icon
6. Alkenes: Structure and Reactivity Based on McMurry’s Organic Chemistry , 7 th edition
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
2 Alkenes - Hydrocarbons With Carbon-Carbon Double Bonds ± Also called olefins ± Includes many naturally occurring materials ± Flavors, fragrances, vitamins
Background image of page 2
3 Why this Chapter? ± Carbon-Carbon double bonds are present in most organic and biological molecules ± To examine consequences of alkene stereoisomerism ± To focus on general alkene reaction: electrophilic addition
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
4 6.1 Industrial Preparation and Use of Alkenes ± Ethylene and propylene are the most important organic chemicals produced
Background image of page 4
5 6.2 Calculating Degree of Unsaturation ± Relates molecular formula to possible structures ± Degree of unsaturation : number of multiple bonds or rings ± Formula for a saturated acyclic compound is C n H 2n+2 ± Each ring or multiple bond replaces 2 H's
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
6 Example: C 6 H 10 ± Saturated is C 6 H 14 ± Therefore 4 H's are not present ± This has two degrees of unsaturation ± Two double bonds? ± or triple bond? ± or two rings ± or ring and double bond
Background image of page 6
7 Degree of Unsaturation With Other Elements ± Organohalogens (X: F, Cl, Br, I) ± Halogen replaces hydrogen ± C 4 H 6 Br 2 and C 4 H 8 have one degree of unsaturation ± Organoxygen compounds (C,H,O) - if connected by single bonds ± These don't affect the total count of H's
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
8 Organonitrogen compounds ± Nitrogen has three bonds ± So if it connects where H was, it adds a hydrogen ± Subtract one H for equivalent degree of unsaturation in hydrocarbon
Background image of page 8
1. Calculate the saturated formula for the stated number of carbons: C n H 2n+2 2. Calculate the base formula for the molecule: ± Add number of halogens to number of H's in the molecular formula ± Ignore the number of oxygens ± Subtract one hydrogen for each nitrogen in the molecular formula 3. Subtract the number of H’s in the base formula from the number of H’s in the saturated formula 4. Divide the difference by 2 to get the degree of unsaturation . Summary - Degree of
Background image of page 9

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 10
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 38

CHAPTER 6 - 6. Alkenes: Structure and Reactivity Based on...

This preview shows document pages 1 - 10. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online