Answer to Question #190393 in Organic Chemistry for ayman shaaban

Question

According to Chan-Ingold-Prelog’s rule, which of the following substituents has the rank 1?

Answer 1

First, determine which of the chains has the first connection to an atom with the highest priority (the highest atomic number). That chain has the higher priority. If the chains are similar, proceed down the chain, until a point of difference. For example: an ethyl substituent takes priority over a methyl substituent.