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

The Cahn-Ingold-Prelog priority rules assign higher priority to atoms with higher atomic numbers. In the given options, the substituents are differentiated by their first point of difference involving nitrogen (N) and carbon (C) atoms. Option B, −NHCH₂, has the highest priority because it directly attaches to nitrogen, which has a higher atomic number than carbon, making it the highest priority substituent among the given options.

Which of the Following Substituents Has the Highest Priority According