126
3 Brief Demonstration of the General Nomenclature Rules
2,2-Dichloro-I,3-benzodioxole-S-sulfonic acid
or:
3,4-(Dichloromethylenedioxy)benzenesulfonic acid
Finally, aeylals and thioaeetals are henceforth only to be named substitutively as esters and •.. ylthio ... compounds, respectively.
o
H2
"
[ c O-C-Et
3 I '/
1C I ,
4
C O-C-Ph
H2
II
o
H2
[ c S-Et
1 I '/
4C I ,
2
C S-Ph
H2
3.4
Cyclopent-3-enylidene benzoate propionate
4-(Ethylthio )-4-(phenylthio )cyclopentene
(trad.: Cyclopent-3-en-I-one ethyl phenyl dithioketal)
1-( Cyclohexylthio ) cyclopent -3-ene-l-thiol
Alcohols, Phenols, and their Derivatives
Alcohols and phenols are generally named by the substitutive method
although Chern. Abstr. applies conjunctive nomenclature whenever possible, i.e. for chain alcohols with ring substituent groups
HOH2C -CH- CH2 -CH- CH 2 - CH- CH20H Heptane-I,2,4,6,7-pentol
I
I
I
OH
OH
OH
CI3C-CH(OHh
2,2,2-Trichloroethane-I, l-diol
(Chloral hydrate)
H2 H2
C-C H
/
\ /
HC(OHh
Methanetriol
(Orthoformic acid)
H2C
1C,
Cyclohex-2-en-l-01
\=.I OH
2