Naming of ketones???
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Naming of ketones???

[From: ] [author: ] [Date: 12-01-09] [Hit: ]
?Will the bulkier group come first?Will it be arranged alphabetically?Is iso taken into account while alphabetical arrangement?Thanks!!......
In ketones, while common naming a compound, for example

CH3-CH2-CO-CH-(CH3)2

Here the carbon attached to oxygen has ethyl group at one end and isopropyl group on the other end. So how does the naming go and why so??

Will the bulkier group come first?
Will it be arranged alphabetically?
Is "iso" taken into account while alphabetical arrangement?

Thanks!!!

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you name this ketone by considering the alkyl groups attached to both sides of the carbonyl. There is an ethyl group CH3CH2- , and there is an isopropyl group -CH-(CH3)2. when naming, the substituents come first followed by the name "ketone". the substituents are named in alphabetical order and the prefix iso is taken into account in alphabetizing. so the name of this ketone is: ethyl isopropyl ketone

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I would name it 2-methyl-3-pentanone, but that's the IUPAC name, not what you want. My CRC (51st edition, heh, page C-415) lists it as 2-methyl-3-pentanone, then lists ethyl isopropyl ketone as its only synonym.

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For me simply Carbon trihydride-Carbon dihydride-Carbon monoxide-Carbon monohydride-(Carbon trihydride)2 = Final answer, Carbon trihydride-Carbon dihydride-Carbon monoxide-Carbon monohydride-dicarbon hexahydride. Sorry this is only what I can help you
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