Functional class names

Substitutive names are preferred but functional class names are sometimes more convenient or more familiar and are frequently encountered m organic chemistry... 

Functional class names of alcohols are derived by naming the alkyl group that bears the hydroxyl substituent (—OH) and then adding alcohol as a separate word The chain IS always numbered beginning at the carbon to which the hydroxyl group is attached... 

Functional class names are part of the lUPAC system they are not common names... 

Substitutive name 2 Bromohexane Functional class name 1 Methylpentyl bromide... 

The substitutive names of alcohols are derived by replacing the e end mg of an alkane with ol The longest chain containing the OH group becomes the basis for the name Functional class names of alcohols begin with the name of the alkyl group and end m the word alcohol... 

Wnte structural formulas or build molecular models for all the constitutionally isomenc alcohols of molecular formula C5H12O Assign a substitutive and a functional class name to each one and specify whether it is a pnmary secondary or tertiary alcohol... 

Substitutive lUPAC name 1 Methoxyhexane Functional class name Hexyl methyl ether... 

There are no functional class names for aldehydes in the lUPAC system... 

Substitutive name Functional class names 1 Chlorobutane n Butyl chloride or butyl chloride 2 Chlorobutane sec Butyl chloride or 1 methylpropyl chloride... 

Substitutive name Functional class names 1 Butanol n Butyl alcohol or butyl alcohol 2 Butanol sec Butyl alcohol or 1 methylpropyl alcohol... 

Table 1.9 Functional Class Names Used in Radicofunctional Nomenclature 1.22...

In order of decreasing priority for citation of a functional class name, and the prefix for substitutive nomenclature, are the following related compounds ... 

Substitutive lUPAC name l-(Methylthio)hexane Functional class name Hexyl methyl sulfide... 

A complete list is given in Table 4.1. These names may be used in inorganic functional class names. 

It is possible to regard radicofunctional nomenclature, in which the functional class name of a compound (e.g. alcohol, ketone, etc.) is cited after the names of the attached radicals, as involving an additive procedure (example 146). This type of nomenclature is gradually falling out of use in favor of the substitutive equivalent [for 146 the substitutive name would be l-(3-pyridyl)propan-l-one]. 

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