⚗️ Nomenclature
MEPBO: 1=Meth, 2=Eth, 3=Prop, 4=But, 5=Pent, 6=Hex, 7=Hept, 8=Oct, 9=Non, 10=Dec
Carbon Chain Prefixes
Memory trick: My Excellent Professor Bought Purple High Heels On Nice Days — Meth, Eth, Prop, But, Pent, Hex, Hept, Oct, Non, Dec.
⚗️ Nomenclature
-ane, -ene, -yne, -ol, -al, -one, -oic acid
Suffix = Functional Group
The suffix tells you the functional group: -ane=alkane, -ene=alkene, -yne=alkyne, -ol=alcohol, -al=aldehyde, -one=ketone, -oic acid=carboxylic acid, -amine=amine.
⚗️ Nomenclature
LNNFAS: Longest chain, Number from closest substituent, Name substituents, Find parent, Alphabetize, State name
IUPAC Naming Steps
1) Find longest carbon chain. 2) Number from end closest to first substituent. 3) Name and number all substituents. 4) Name parent chain. 5) Alphabetize substituents. 6) Write full name.
⚗️ Nomenclature
di, tri, tetra, penta for multiples
Multiple Substituents
When the same substituent appears more than once: 2=di, 3=tri, 4=tetra, 5=penta. Example: 2,2-dimethylpropane. These prefixes are NOT counted in alphabetical ordering.
⚗️ Nomenclature
Cyclo + parent + suffix
Naming Cyclic Compounds
Add 'cyclo' prefix before the parent chain name. Cyclohexane, cyclopentene, cyclobutanol. For substituents on ring, number to give lowest locants.