Nomenclature

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Reply 20

TwoTimesTwo

MGIL

no alphabet prioritising?

And what's nomencrature :confused:

I'd do the first one (bromo then methyl) i don't know whether that's 100% correct due to the alphabet, or just because it sounds right.

nomencrature was a typo :P

Reply 21

definite_maybe

THanks again. One more I dont get. CH2FCH2CH2CHBrCH3

So is this 2-bromo-5-fluoropentane or is it 1-fluoro-4-bromopentane?

Reply 22

TwoTimesTwo

"The substituents are listed alphabetically in the final name."

http://www.cem.msu.edu/~reusch/VirtualText/nomen1.htm

So, it's bromo then methyl.

Reply 23

FlowerFaerie087

It is bromo then fluoro alphabetically, but the lowest possible numbers are used.
4-bromo-1-fluoropentane is correct. xx

Reply 24

TwoTimesTwo

definite_maybe

THanks again. One more I dont get. CH2FCH2CH2CHBrCH3

So is this 2-bromo-5-fluoropentane or is it 1-fluoro-4-bromopentane?

Going by the rule i just stated, it'd be 2-bromo, 5-fluoro..... but i have a sneaking suspiction it's the other one... don't ask me why, but when i drew it out, i automatically went to call it 1-fluoro...
We'll see what anyone else says :p: