Monday, July 29, 2019

organic chemistry - Doubts about IUPAC nomenclature of 4-ethyl-1-fluoro-2-nitrobenzene


Why is 4-ethyl-1-fluoro-2-nitrobenzene (structure is in the attached picture) called so ?


Shouldn't it be called as 1-ethyl-4-fluoro-3-nitrobenzene since the precedence of ethyl is greater than halogens?



4-ethyl-1-fluoro-2-nitrobenzene




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