Nom menclature: Th he name of evvery organic ccompound haas three partss: Prefix
Paarent
•Substituents & Positio ons
•Longest C Carbon Chain
Suffixx ••Functional Group Class
For aacyclic compo ounds:
Find P Parent Nam me •Find th he longest conttinuous carbon n chain •Use this chain as the parent name
Add SSuffix •Add the suffix for the e parent functional group •Since w we have no fun nctional group,, we keep ‐anee
Numb ber Substittuent Posittions •# the cchain to give th he first substitu uent the lowesst #—not a collection of substtituents •If the ffirst substituen nt is the same d distance from b both ends, # so o the next subsstituent has th he lowest # •If the ssame set of numbers arise fro om numberingg eithe •r end o of the chain, asssign the lowerr # alphabeticaally to the first substituent (ex. give ethyl lo ower number than m methyl)
Namee Substitue ents •For eacch substituent branch name as its own longgest carbon ch hain, drop ‐ane and add ‐yl •If identtical substituen nts are bonded d to the longesst chain use preefixes to speciffy number present, di‐ (2), trri‐ (3), tettra‐ (4), penta‐ (5), etc. •Know tthe names of tthe branched substituents: issopropyl, sec‐b butyl, isobutyl aand tert‐butyl
Assem mble Name e •Alphab betize the subsstituent list—iggnore all prefixxes (di‐, tri, or ssec‐, tert‐) exceept iso‐ •Numbeer each substittuent as to its location on thee longest chain n, precede the substituent naame with the numbeer separated byy a hyphen (exx. 3‐ethyl‐2‐meethyl) •If a sub bstituent occurrs on multiple locations (ex. ttrimethyl) list tthe positions separated by co omma(s) (ex. 2,2,4‐trimethyl)
