1. Conjugated pi orbital nucleophiles
a. The two mechanism schemes below are both valid representations of the same single-step reaction. Add the reactive lone pairs and curved arrows to each one, and label reactive sites (Nu, E, LG).
add reactive lone pairs, reactant role labels, and curved arrows
b. Add curved arrows to the mechanism drawing below. What is incorrect about this drawing? Edit the drawing to fix the mistake.
add curved arrows and fix the mistake
c. The first reaction below matches the reaction from parts a and b of this question, except with a generic electrophile "E+". A different (competing) product can potentially be formed. Use curved arrows to predict the structure of this competing product, which is a constitutional isomer of the first product shown.
add curved arrows
vs.
a constitutional isomer of the product above
add curved arrows