Orgo · Substitution & elimination

S_N/E Decision Map

Pick the carbon and the reagent to light up the path, or click any box on the map to open its rule. Scroll or pinch to zoom, drag to pan. Practice problems below the map are traced through it.

1Carbon holding the leaving group

Methyl / 1° 2° 3° Allylic / benzylic Vinyl / aryl

2Reagent

Strong base Bulky base Good Nu, weak base Weak (solvent)

or type it:

Heat (Δ)

Drag to pan · scroll to zoom

Practice set

28 problems, traced

Try each one first. The chips jump to the branch and rule card it uses; the answer stays hidden until you open it.