ochem important nomenclature question

[yahoogoogle]

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when you name alkanes with multiple substituents, i understand we should give alphebatical order like ethyl before methyl, but what about ethyl vs dimethyl vs isopropyl. do we take prefixes into account?

 

[HeatingHomer]

Prefixes are not counted. Ethyl would come before dimethyl.

 

[Hokie08]

di, tri etc. dont count when alphabetizing but iso, tert, etc DO MATTER when alphabetizing

 

[Flipper405]

Iso IS counted in alphabetization because it is considered part of the name, not a prefix, while sec-, tert-, neo- etc. are prefixes and are not considered in alphabetization. Also, di-, tri, tetra- are also prefixes and are not considered in alphabetization.

 

[Cute Fairy]

when you name alkanes with multiple substituents, i understand we should give alphebatical order like ethyl before methyl, but what about ethyl vs dimethyl vs isopropyl. do we take prefixes into account?

I agree with the crowd, that prefixes never come into play