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Topic: basic nomenclature question  (Read 3912 times)

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Offline cypher9600

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basic nomenclature question
« on: September 16, 2007, 01:39:48 PM »
 ???

what i'm having issues with, is when to use the prefixes iso-, sec-, and tert-...can somebody explain in dummy terms for me?

thanks
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Offline Sev

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Re: basic nomenclature question
« Reply #1 on: September 18, 2007, 06:58:49 AM »
'sec' and 'tert' are used when an alkyl substituent is branched.

'sec' is an abreviation for secondary, meaning a carbon bonded to 2 other carbons.  For example, 'sec-butyl' would be -CH(CH3)CH2CH3.

Can you guess what 'tert' would be?

I'm not sure about 'iso'.  I think it is used in common names for alkanes that terminate in a -CH(CH3)2 group. 
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Offline movies

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Re: basic nomenclature question
« Reply #2 on: September 18, 2007, 12:10:50 PM »
Quote from: Sev on September 18, 2007, 06:58:49 AM
I'm not sure about 'iso'.  I think it is used in common names for alkanes that terminate in a -CH(CH3)2 group. 

Correct!
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