Nomenclature

Nomenclature - cyclopropane cyclobutane cyclopentane etc...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
Rules for Naming Branched-Chain Alkanes 1. Name as n -alkane derivatives. 2. Select the longest carbon chain. It does not matter how the chain is drawn on paper. 3. Give each carbon in the longest chain a number and number and name each substituent. 4. Repeat number if carbon has two substituents. 5. Number chain from the end that gives the lowest substitution numbers. 6. If two names are equally possible, choose the name with the less complex substituents. 7. List substituents alphabetically , ignoring prefixes such as di, tri, and tetra or n - sec -, and tert -. Rules for Naming Cycloalkanes 1. Cycloalkanes are named based on the number of carbons in the ring, i.e.
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: cyclopropane, cyclobutane, cyclopentane, etc., and not the total number of carbons in the compound. 2. When substituents are present, they are specified and numbered as for branched- chain alkanes. 3. When one substituent is present, specifying its position is not necessary. 4. If two or more substituents are present, the ring is numbered to give the substituents the lowest set of numbers. 5. If two or more different substituents are present, they are listed alphabetically, ignoring prefixes such as di, tri, tetra or n-, sec- and tert-. (by Professor Gary R. Gray, Department of Chemistry, University of Minnesota)...
View Full Document

This note was uploaded on 10/30/2011 for the course CHEM 2301 taught by Professor Gao during the Spring '07 term at Minnesota.

Ask a homework question - tutors are online