The Wonderful World of Esters

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Presentation transcript:

The Wonderful World of Esters Danielle and Kaitlyn

What is it? Properties: Esters derive from carboxylic acids. Colorless liquids Sweet, fruity smells Soluble in alcohol Reaction is reversible Polar (less polar than alcohols) Varying boiling points Esters derive from carboxylic acids. Contains the –COOH group The hydrogen in this group is replaced with a hydrocarbon ie. An alkyl group such as methyl or ethyl, or a benzene ring like phenyl

3- methylbutyl acetate Octyl ethanoate Methyl butanoate

R-OH + C-R’  R-O-C-R’ + H-O-H General Formula R-COOR’ Carboxylic acid Ester!! O R-OH + C-R’  R-O-C-R’ + H-O-H HO O Water!! Alkyl group Can be the same or different as “R”

Synthesis! HEAT Alcohol Carboxylic acid ESTERIFICATION Water Ester

Reverse the reaction! Can be broken down in a strong acid or base Add water!! “Hydrolyzed”, produces an alcohol and a carboxylic acid

Naming Step 1: Name of alkyl group bonded to single-bonded “O” (R’) Step 2: Name of carboxylic acid, “oic acid” ending replaced with “oate” (RCOO) Step 3: Read backwards

https://youtu.be/KZhxI_i8jcE Just in case… https://youtu.be/KZhxI_i8jcE

The name of thrones (Naming) Propyl ethanoate 3-methylbutyl acetate Benzyl acetate

Resources Prentice Hall Chemistry pg. 742 Modern Chemistry pg. 313-314 https://youtu.be/KZhxI_i8jcE http://www.3rd1000.com/chem301/chem301v.htm http://www.iceis.pl/drinki/drinki_przepisyh249.jpg http://www.chm.bris.ac.uk/motm/ethylacetate/smell s.htm http://previews.123rf.com/images/haywiremedia/ha ywiremedia1302/haywiremedia130200025/1806608 1-A-young-boy-is-driving-a-box-car-with-a-wheels- thar-are-drawn-and-he-is-holding-a-steering-wheel- on--Stock-Photo.jpg http://media.wilby.nu/2014/06/fEW6Y.jpg http://i3.cpcache.com/product/78499651/hello_este r_ash_grey_tshirt.jpg?width=350&height=350&Filter s http://images.parentherald.com/data/images/full/47 522/bucket-of-water.png http://gustotv.com/wp- content/uploads/2014/12/shutterstock_84284302.jp g http://images.all-free- download.com/images/graphicthumb/banana_31073 5.jpg https://staticdelivery.nexusmods.com/mods/110/im ages/74627-0-1459502036.jpg Prentice Hall Chemistry pg. 742 Modern Chemistry pg. 313-314 Methyl ethanoate Ethyl methanoate Methyl benzoate