3.1 Carboxylic Acids, Sulfonic Acids, etc. and their Derivatives
115
Conjunctive nomenclature is particularly suitable for systems multiply
substituted with identical functional parents but is generally used by
Chern. Abstr. for any type of saturated linear monocarboxylic acid bearing
a ring as substituent group.
CH2 -COOH
H2C-COOH
conjunct.: Naphthalene-l,2,4,6,7-pentaacetic acid,
substit.:
Naphthalene-l,2,4,6,7 -pentaylpentaacetic acid
5
3
1
':/"
':'::
C H 3
Q6
H3C -C~-9H2- 9~H- ~H2- COOH
~ I ~ substit.: 3-Methyl-5-{5-nitro-l-naphthyl)hexanoic acid
conjunct.: /3,6-Dimethyl-5-nitro naphthalene-lN0 2
pentanoic acid
In an exceptional ruling hemiamides and hemialdehydes of trivially
named carboxylic acids can be designated as ... amidic and aldehydic
acids, respectively.
OHC-CHz-COOH
Malonaldehydic acid,
syst.: 3-0xopropanoic acid
o
COOH
q
CONH2
I 1 2
'\&
NO
4-Nitrosophthalamic acid
carbonyl-4-nitrosobenzoic acid
II
Malonamidic acid, syst.: 3-Amino-3H2N - C - CH2- C02H oxopropanoic acid
Substituent groups ("radicals") derived from acids and certain derivatives
thereof by removal of -OH from the functional group are generally called
acyl groups and individually named by transforming the ending ... ic acid
to ... yl or ... oyl and ... carboxylic acid to ... carbonyl. The names thus
formed can also be used in "radicofunctional" (functional class) nomenclature.