When determining the Absolute R/S Configuration of a chiral center drawn in a standard 3D Wedge-Dash — Isomerism and Stereochemistry Chemistry Question
Question
When determining the Absolute R/S Configuration of a chiral center drawn in a standard 3D Wedge-Dash projection, what is the configuration if the lowest priority group (Group 4) is located on the dashed wedge, and the $1 \rightarrow 2 \rightarrow 3$ priority sequence traces a clockwise path?
Answer: B
💡 Solution & Explanation
The IUPAC absolute configuration rules evaluate the $1 \rightarrow 2 \rightarrow 3$ path while looking directly down the carbon-to-group-4 bond. A dashed wedge implies the bond is pointing perfectly away from the observer into the page. Since Group 4 is in the ideal viewing position, a clockwise trace directly and accurately yields an 'R' (Rectus/Right) absolute configuration.
💬Ask on WhatsApp →
Still have doubts about this question?
Send it to our AI chemistry tutor on WhatsApp — gets answered in minutes