Feb 26 2014 Chemistry 11: Organic Chemistry Last Class, We Discussed: Alkyl halides: branches of group 7 atoms (Naming rule: fluoro-, chloro-, bromo-, and iodo-) Alcohols: molecules containing a hydroxyl group (R-OH) (Naming rule: drop the -e, add -ol) Aldehydes molecules wih a C=O (carboxyl group) on an end of the molecule (Naming rule: drop the -e, add –al) Ketones Ketones look similar to ___________________ as we saw yesterday. They both contain the same ______________________________________group. The main difference is that ketones have the carbonyl group ___________________ along the parent chain except the ___________________. If the carbonyl group is on an end of the molecule, we have an ___________________,not a ketone! Naming Ketones We first look at our longest chain (i.e. parent chain) _________________________________________________________. Then, we drop the_________ from the suffix, and add ______________. Finally, we add the number of the ________________________________ carbon in front of the name. The remainder of the molecule is named following the steps as we have seen already. ___________________groups take priority over ___________________ groups! Examples Amines vs. Amides Amines Amides Draw Above ___________________contain a ___________________atom within the molecule. Draw Above ___________________contain a ___________________ as well as a ___________________. Naming Amines ___________________ ___________________ ___________________ Amine naming is different! 2 Naming Amines (Cont’d) Name the hydrocarbon groups attached to the _________________________________________________________all ending with __________. Use _____________ instead of the carbon number to label these groups ______________________________________ If ___________________is a branch, it is called an ___________________ branch Examples 3 Naming Amides Name the longest chain containing the ___________________ group giving it ___________________ ___________________. Drop the____________and add ___________________. Examples Draw: a. Ethanamide b. 3-ethyl-2,2-difluorooctanamide c. 4-propyl-2-nonenamide The remaining time is yours to review and complete the worksheets or your project I will go over several questions from past and current worksheets 4