Question 2. The smells of fruits are due to the presence of complicated mixtures of chemicals, (not always just esters) rather than solely one ester, but individual esters are often important components in this. Chemists have identified the following esters which have fruity scents. Your task is to name them using the IUPAC naming procedure. Using the IUPAC naming rules, name the following ester molecules. Name of Ester: H H-C- H O H H H H H 0-C-C-C-C-C-H HHHH H a. This ester smells like pear. HHH H-C-C-c-c HHH H-C -C C 0 O b. This ester smells like pineapple. HHH HHH Н Н Н 0 H 0-C-C-H | | H H H c. This ester smells like strawberry. H H HH C- C- C -C C-H H H H H H HIGIH Name of Ester: Name of Ester:

Which functional groups are absent in the following molecule? H ether ester aldehyde carboxylic acid ketone

which ester group form in the esterfication reaction of octanoic acid with 1-propanol.

For each of the following, circle the portion of the molecule that determines its functional group classification and state whether the functional group is an acyl halide, aldehyde, amide, anhydride, carboxylic acid, ester, ketone, lactam, lactone, or nitrile. Then, unless otherwise indicated, write both the IUPAC and common name of the molecule.