:I've made most of these changes. For 1, it might be visually clearer as =-R', but R' has partial positive charge compared to a vinyl group, and reactants are usually written with the more positive part on the left. In the products, the way it's drawn there makes it clear that R was an electrophile and R' was a nucleophile that underwent substitution at the vinyl group. For 2, neither of those degrees really are "in" something. The major biographical detail is the doctoral advisor. I added Saul Winstein to the infobox. For 3 and 4, I made those additions.