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Topic: Adamantane IUPAC  (Read 3062 times)

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Offline Rutherford

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Adamantane IUPAC
« on: January 03, 2014, 07:42:30 AM »
Why is adamantane (http://www.drugbank.ca/drugs/DB03627/structure?dim=3d) called Tricyclo[3.3.1.1]decane?
Trycyclo- is because three cycles form adamantane (the "4th" is produced from the three).
Why is [3.3.1.1] in the brackets? Could someone mark the bridges in adamantane to which these numbers belong?

Offline sjb

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Re: Adamantane IUPAC
« Reply #1 on: January 03, 2014, 08:20:49 AM »

Offline kriggy

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Re: Adamantane IUPAC
« Reply #2 on: January 03, 2014, 09:18:57 AM »
Its tricyklo[3.3.1.13.7]decane
3.3.1.1 means number of carbons in that cycle 3 means 3 carbons in that cycle and 1 means amount of carbons in bridge. The carbons where the 1st bridge connects doesnt count.
hope this image helps

and btw there is no 4th cycle.

Offline Rutherford

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Re: Adamantane IUPAC
« Reply #3 on: January 03, 2014, 10:20:47 AM »
Okay, thanks.

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