CHEM 203 Lecture Notes - Decane, Substituent, Parent Structure
Document Summary
Locate the longest chain to determine the parent name. Use the longest chain that has the most branches or functionalization. Yl groups * know from methyl (1 carbon) to 10. Start at the end that gives the smallest carbon number at the first substituent (the first brand in our ex. is at c3 not c4) Dashes between numbers and letters and commas between numbers. Must use prefixes where applicable (di, tri, tetra, penta ) C1 is the carbon that is bonded to the parent chain. Name the alkyl branch, 1, 2-dimethylpropyl (i. e. use -yl ) Place the name of the complex branch into the parent name using brackets. Ties go to alphabetical priority (ethyl > methyl) If cyclo- group is attached to chain (or branch), parent group is the structure w/ the greater number of carbons in the parent itself, e. g. ring >> chain, or chain >> ring.
