NOMENCLATURE
07:24
The name of every organic molecule has 3 parts:
RULE 1
- Find the parent carbon chain and add the suffix.
RULE 2
- Number the atoms in the carbon chain from the end that gives the first substituent the lowest number.
RULE 3
Name
and number the substituents.
- Name the substituents as alkyl groups.
- Every carbon is part of the longest chain or a part of a substituent, not both.
- Each substituent needs its own number.
- If two or more identical substituents are bonded to the longest chain, use prefixes to indicate how many: di- for two groups, tri- for three groups, tetra- for four groups, etc.
Finally,
write the name.
- Substituent names and numbers come before the parent.
- List substituents in alphabetical order, ignoring all prefixes except iso, as in isopropyl and isobutyl.
- Separate numbers by commas and separate numbers from letters by hyphens. The name of an alkane is a single word, with no spaces after hyphens and commas.
0 comments