1.2 Cyclic Systems
TabIe2 (continued)
Phenoxazine
Phenothiazine
Analogously:
Phenoselenazine etc.
Phosphinoline
Likewise: Arsinoline,
Isophosphinoline etc.
Phosphindole
Likewise: Arsindole,
Isophosphindole etc.
Oxazole
Isoxazole
New:
1,3- resp. 1,2-0xazole
Thiazole
Isothiazole
New:
1,3- und 1,2-Thiazole
Furazan
49
9
H
1
OC I~~
~ O~
6
5
4
9
H
1
OC I~~
~ S~
6
5
4
°
0
L~3
I ,N2
S
(]
L~3
I ,N2
1
5 N/O'N2
~
a Other trivial names which might be retained can be found in the Ring Index and Chern.
Abstr. registers.
b Exceptions from systematic numbering.
C In German these names still begin with Ch ...