Which of the following substituents has the highest priority according to the Cahn-Ingold-Prelog system used in assigning R and S configurations?

Question

Quizplus · Accepted Answer

According to the Cahn-Ingold-Prelog priority rules, priority is determined by the atomic number of the atoms directly attached to the chiral center. In this case, "-NHCH3" has a nitrogen atom directly attached, and the next atom is carbon (from the methyl group), which gives it a higher priority compared to the other substituents that have hydrogen as the next atom.

Which of the Following Substituents Has the Highest Priority According