{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

4 Handout (Naming)(1)

4 Handout (Naming)(1) - 4 Write out the name in the...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Ken Shimizu Naming Handout General Rules: 1) Find the longest continuous linear chain of carbons in the parent alkane -If there are two chains of equal length, the chain with a greater number of substituents is the parent alkane # of carbons parent name substituent name 1 methane methyl 2 ethane ethyl 3 propane propyl 4 butane butyl 5 pentane pentyl 6 hexane hexyl 7 heptane heptyl 8 octane octyl 9 nonane nonyl 10 decane decyl 2) Name any substituents attached to the parent alkane -Group substituents that are repeated using the prefixes (di-, tri-, tetra- etc.) -Order the substituents in alphabetical order w/o prefixes ie. ethyl before methyl ethyl before dimethyl (disregard the prefixes di- or tri-) iso and neo are not prefixes (so iso- propyl comes before methyl) 3) Number the parent alkane - Start from the end that is closest to a substituent* *if two choices are possible: a) start from the end where the second substituent is closest b) if everything else is the same, go alphabetically
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Background image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: 4) Write out the name in the format #,#-prefix substituent-#-prefix substituent parentalkane Examples: 1 2 5 6 9 2,6-dimethyl-5-propyl nonane 1 2 3 7 3-ethyl-2-methyl heptane not 3-i sopropyl heptane Cl 1 4 2 5 6 4-tert-butyl-6-chloro-2,3-dimethyl heptane Ken Shimizu Branched Alkanes: Common names (not IUPAC) isopropyl isobutyl sec-butyl tert-butyl IUPAC names: isopropyl = (1-methylethyl) isobutyl = (2-methylpropyl) sec-butyl = (1-methylpropyl) tert-butyl = (2,2-dimethylethyl) Other Functional Groups F fluoro Cl chloro Br bromo I iodo phenyl Cycloalkanes (Rings) Parent Structure is the Cycloalkane: cyclopropane cyclobutane cyclopentane cyclohexane Otherwise the naming rule are the same: 1,1-dimethyl cyclohexane 1 2 1-ethyl-2-methyl cyclobutane Number the ring in the direction that gives the lowest numbers.* * If there are two possible directions and places to start then go alphabetically....
View Full Document

{[ snackBarMessage ]}