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ESTERS
Mo and Lana
RCOOR’
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Esters
Structure of ester: 4th on priority list 1st: Cations 2nd: Carboxylic Acids 3rd: Acid Anhydrides 4th: Esters
RCOOR’
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Esterification- How to make an ester
Carboxylic Acid
Alcohol Ester Water
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Naming
Esters have two parts to their names Part 1: the group that came from the alcohol
Everything right of single bonded O, name as attached group (using yl and priority)
Part 2: the group that came from the carboxylic acid
Everything to the left of the O, drop e and add ---oate.
Note: Esters are drawn with the carboxylic acid first and then the alcohol but they are written with the alcohol first and carboxylic acid second
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Ethyl Ethanoate
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Practice- NAME THESE
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ANSWERS
Ethyl nonanoate
“Grape”
Ethyl penanoate
“Apple”
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Practice- DRAW THESE
Methyl penanoate “Flowery”
Methyl benzoate “Fruity”
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ANSWERS
Methyl penanoate “Flowery”
Methyl benzoate “Fruity”
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Uses
Artificial and natural flavors and smells
Such as:-Fruits-Flowers-Candy
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No Apple Pie No Pecan Pie
Ingredients 2 cups water 1 ½ cups white sugar 1 ½ teaspoons cream
of tartar 1 tablespoon butter Cinnamon Approx. 30 Ritz
crackers Pie shells
Ingredients 9-in pre-made
refrigerator crust 1 1/2 cups sugar 1 stick butter or
margarine 2 eggs 1/2 cup coconut 1/2 cup and 1 Tbsp
mashed pinto beans 1 tsp vanilla extract
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No Apple/ Pecan Pie Science
Cream of Tartar + Sugar + heat = Apple Ester!!
Ritz Crackers look like cooked apples
Pinto Beans = Pecan Pie Texture
Sugar = Pecan Pie Flavor