for 5-(1,2-dimethylpropyl)-3,7-diethyl-2-methyldecane

why does dimethylpropyl come before the other two, arent you suppose to not include the di's when alphabetizing in order??

Question

for 5-(1,2-dimethylpropyl)-3,7-diethyl-2-methyldecane

why does dimethylpropyl come before the other two, arent you suppose to not include the di's when alphabetizing in order??

abb0t · Answer

They are in parenthesis. Two i-butanes are on C5.

anonymous · Answer

i dont understand?

anonymous · Answer

same thing for :

4-(1,1-dimethylethyl)-6-ethyl-2,3,5-trimethylocatane

i can name all others in order but for some reason these arent making sense like i thought you take off the di^ so then ethyl should come before methylethyl, then methylocatane

abb0t · Answer

It means that is is not part of the main carbon chain.

anonymous · Answer

oh so when do i know to put them in order then when im alphabetizing everything else during nomenclature?

abb0t · Answer

It's like CH$_3$CH$_2$CH$_2$(CH$_3$)$_2$CH$_2$CH$_2$CH$_3$

anonymous · Answer

for example:

4,7-diethyl-2,3,5-trimethyl-6-(1-methylpropyl)decane

this makes sense, (di) ethyl first, then (tri) methyl, then methylpropyl, <<< follows the alphabetizing order

anonymous · Answer

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anonymous · Answer

4-(1,1-dimethylethyl)-6-ethyl-2,3,5-trimethylocatane

anonymous · Answer

that is that, but i dont know how to know why i put dimethylethyl first :(?