Heterocyclic Spiro Compounds
Rule B-12. Radicals 12.1 - Radicals derived from heterocyclic spiro compounds named by Rule B-10.1 are named according to the principles set forth in Rules
A-11 and B-5.21. Radicals derived from other heterocyclic spiro compounds are named by adding "-yl", "-diyl", etc., to the name of the spiro compound (with elision of
final "e", if present, before a vowel). The numbering of the spiro compound is retained and the point or points of attachment are given numbers as low as is consistent with any fixed numbering of the
heterocyclic spiro compound.
See Recommendations'93 R-2.5
Examples to Rule B-12.1
(cf. Rule B-10.1)
(cf. Rule B-11.1)
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