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how do you work out carbon environments?

i understand how to work out the number of environments in benzene, but i cant work out the number of carbon environments in branched molecules like adrenaline, zingerone and gingerol

(edited 9 years ago)

Reply 1

charco

Study Forum Helper

Original post by Doob

i understand how to work out the number of environments in benzene, but i cant work out the number of carbon environments in branched molecules like adrenaline, zingerone and gingerol

It's not hard to work out the environments of benzene - there is only one!

To be in the same environment the protons (if you are talking about 1HNMR) must have all the neighbouring atoms identical as far as the eye can see. In other words you do not stop at the first neighbour you continue on to ALL the neighbours in sequence. If two protons have the whole chain of neighbours the same then they are in identical environments.

Reply 2

propagation

Original post by Doob

i understand how to work out the number of environments in benzene, but i cant work out the number of carbon environments in branched molecules like adrenaline, zingerone and gingerol