120
3 Brief Demonstration of the General Nomenclature Rules
Isocyanides and analogous compounds are exclusively named in a radicofunctional way, i. e. with functional class designations, provided the functional group is not expressed as a substitutive prefix.
3.3
NCSe-CHz-CH2-OCN
2-Isoselenocyanatoethyl cyanate
Chern. Abstr.: Cyanic acid 2-isoselenocyanatoethyl ester
3-Thiocyanato-3H -1,2,4-triazol-5-yl isocyanide
CA: 3-Thiocyanato-5-isocyano-3H-1 ,2,4-triazole
Aldehydes and Ketones
The two substitutive naming approaches for aldehydes are used exactly as
in the case of carboxylic acides, nitriles, etc.
3
1
H2C=CH-CH=CH
\5
2
1
5-(Buta-1,3-dienyl)hept -
2-ynedial
CH-CH2-C:::C-CHO
/
OHC-CH2
7
3-(3-0xopropyl)hex-3-ene1,2,6-tricarbaldehyde
For linear aldehydes bearing cyclic substituent groups, Chern. Abstr. again
employs exclusively conjunctive names.
ex
H2C 2 -CHO
I 1
~~HCI
~
H2C - CHO
subst.: 3-Chloro-3- [4-(2-0xoethyl)-2naphthyl]propanal
conj.: f3-Chloro-4-(2-oxoethyl)naphthalene2-propanal
3 Brief Demonstration of the General Nomenclature Rules
Isocyanides and analogous compounds are exclusively named in a radicofunctional way, i. e. with functional class designations, provided the functional group is not expressed as a substitutive prefix.
3.3
NCSe-CHz-CH2-OCN
2-Isoselenocyanatoethyl cyanate
Chern. Abstr.: Cyanic acid 2-isoselenocyanatoethyl ester
3-Thiocyanato-3H -1,2,4-triazol-5-yl isocyanide
CA: 3-Thiocyanato-5-isocyano-3H-1 ,2,4-triazole
Aldehydes and Ketones
The two substitutive naming approaches for aldehydes are used exactly as
in the case of carboxylic acides, nitriles, etc.
3
1
H2C=CH-CH=CH
\5
2
1
5-(Buta-1,3-dienyl)hept -
2-ynedial
CH-CH2-C:::C-CHO
/
OHC-CH2
7
3-(3-0xopropyl)hex-3-ene1,2,6-tricarbaldehyde
For linear aldehydes bearing cyclic substituent groups, Chern. Abstr. again
employs exclusively conjunctive names.
ex
H2C 2 -CHO
I 1
~~HCI
~
H2C - CHO
subst.: 3-Chloro-3- [4-(2-0xoethyl)-2naphthyl]propanal
conj.: f3-Chloro-4-(2-oxoethyl)naphthalene2-propanal