Examples of bridge names to Rule A-34.1
Butano Benzeno (o-, m-, p-) Ethano Etheno Methano Propano
34.2 - The parent "ortho-fused" or "ortho- and peri-fused" system is numbered as prescribed in Rule A-22. Where there is a choice, the position numbers of the bridgeheads should be as low as possible. The remaining bridges are then numbered in turn starting each time with the bridge atom next to the bridgehead possessing the highest number.
Examples to Rule A-34.1
34.3 - When there is a choice of position numbers for the points of attachment for several individual bridges, the lowest numbers are assigned to the bridgeheads in the order of citation of the bridges and the bridge atoms are numbered according to the preceding rule.
Example to Rule A-34.2
34.4 - When the bridge is formed from a bivalent cyclic hydrocarbon radical, low numbers are given to the carbon atoms constituting the shorter bridge and numbering proceeds around the ring.
Example to Rule A-34.3
34.5 - Names for radicals derived from the bridged hydrocarbons considered in Rule A-34.1 are constructed in accordance with the principles set forth in Rule A-24. The abbreviated radical names naphthyl, anthryl, phenanthryl, naphthylene, etc., permitted as exceptions to Rules A-24.2 and A-24.4, are replaced in such cases by the regularly formed names naphthalenyl, anthracenyl, phenanthrenyl, naphthalenediyl, etc.
Examples to Rule A-34.4
See Recommendations'93 R-220.127.116.11
Examples to Rule A-34.5
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