Groups prefixes

Class Group Prefix Class Group Prefix... 

Characteristic group Prefix Characteristic group Prefix... 

And, as a final note, be careful. The code TMT has two meanings. In the phenethylamine area it identifies the mescaline analogue, 3,4,5-trimethoxy-tranylcypromine (ortrans-2-(3,4,5-trimethoxyphenyl)cyclopropylamine). This is entry 56, page 607 of PIHKAL, and check there for further details. Here, entries of trimethylated tryptamines will be preceded by the specific locations of the methyl groups prefixes with numbers, Greek letters, and/or N for nitrogen. 

Cyano-6-hydroxy-4-heptenal (The aldehyde is the highest-priority functional group, so the OH and the CN must be denoted by their group prefixes.)... 

Simple multiple radicals are preceded by di, tii, tetra, etc. to indicate 2, 3, 4,. .. such groups. Prefixes bis, tris, tetrakis,. .. are used to indicate multiple complex side chains whose names are enclosed in parenthesis. Examples are 1,4-diethylbenzene and l,2,4-tris(2-methylpropyl)benzene. 

See also Fox and Powell, Chapter 25. On pages 243-245 there is a tabulation of substituting group prefixes for phosphorus-containing gronps, showing alternatives. For example, the group HP= is called phosphinidene in CAS, phosphinediyl by lUPAC (1979), and phosphanylidene by lUPAC (1993). 

Ending of some non-systematic substituent group prefixes, e.g. amino, NH2— hydrazino, H2NNH—. 

When the tervalent phosphorus group is not the principal group, prefix names have to be used. lUPAC does not give such names, but they may be constructed in analogy with the phosphine nomenclature ... 

Normal group prefix/suffix shown in italics Where different to systematic name... 

Table 17.1 shows the names and Fischer projection formulas for all D-aldotrioses, tetroses, pentoses, and hexoses. Each name consists of three parts. The letter D specifies the configuration at the stereocenter farthest from the carbonyl group. Prefixes, such as rib-, arabin-, and glue-, specify the configurations of all other stereocenters relative to one another. The suffix -ose shows that the compound is a carbohydrate. 

The position of the hydroxyl group along the alkane chain is indicated by means of a number and a hyphen at the beginning of the name. If there is more than one hydroxyl group, prefixes such as di- and tri- are placed just before the -ol in the name, and the -e is not dropped from the alkane name. 

If a senior functional group is present ester functions must be represented in the form of substituent group prefixes. 

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