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Topic: IUPAC NAME  (Read 589 times)

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Offline IBM

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IUPAC NAME
« on: January 13, 2020, 01:58:19 AM »
How to do the numbering of the compound below?

Offline chenbeier

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Re: IUPAC NAME
« Reply #1 on: January 13, 2020, 07:00:37 AM »
Check the order of substituents. Alphabethic order. Smaller numbers.
« Last Edit: January 13, 2020, 07:16:53 AM by chenbeier »

Offline hollytara

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Re: IUPAC NAME
« Reply #2 on: January 13, 2020, 10:53:37 AM »
all alkyl substituents so the rule is "lower number at first point of difference"  - start with one substituent as #1, then the lowest second number.

list them alphabetically (but prefixes like "iso" don't count for alphabetizing)


Offline chenbeier

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Re: IUPAC NAME
« Reply #3 on: January 13, 2020, 12:12:26 PM »
I would not use ISO. Better is 1-Methyl- ethyl- instead Isopropyl-

Offline gedftsnd

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Re: IUPAC NAME
« Reply #4 on: January 20, 2020, 09:14:23 AM »
highest substituent priority gets lowest number.

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