IUPAC Nomenclature for Alkanes - IUPAC Nomenclature for...

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IUPAC Nomenclature for Alkanes The information below is not intended to teach alkane nomenclature, rather it is intended for you to use for reference as you solve this problem and study the feedback provided after you submit your answer. I. Things you should know 1. The "base" name is derived from the longest continuous carbon chain, the "main" chain. 2. Branches (substituents) on this "main" chain are named as alkyl groups. Their positions on the "main" chain are designated by locant numbers. 3. The name is written as one word naming the branches in proper order and using correct punctuation for locant numbers. II. Ordering substituent names Rule 1 Name alkyl branches in alphabetical order ignoring the prefixes di-, tri-, tetra-, etc. III. Main chain numbering Rule 2 Number the main chain in the direction that minimizes the locant number of the first branch point. See the example above which is numbered from left to right so as to have the first branch point at C-2. Numbering the chain from right to left would result in a first branch point at C-5.
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This note was uploaded on 02/10/2010 for the course CHEM 261 taught by Professor Kropp during the Spring '10 term at University of North Carolina Wilmington.

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IUPAC Nomenclature for Alkanes - IUPAC Nomenclature for...

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