Question

9.50 (•.) One way to think about concerted reactions is to imagine them as being stepwise reactions, where, besides the slowest step, all others have infinitesimally small activation energies. Considering the hypothetical stepwise mechanism and actual concerted mechanism of epoxide formation, show what a reaction coordinate diagram might look like for each possibility. (a) Stepwise, hypothetical mechanism fast very fast! но R OR (b) Concerted, actual mechanism (butterfly trans. state) Η Ο o one -- Como ere HOR

Answer 1

it. The reaction.co-ordinate diagramy (ors. energy profile diagrams of step, wowse and concerated ejasidation roxls are look likes to the evenegy présile diagrous/ realtion co-ordinate ... diagrams of SN! and sit, which but not similai Diagrans shown bellow . .. .. Yaris 1: point at single transition state .. outh Butterfly transition state Toint-b -- a Activetion energy 2: 36. . . . . . . - . Sutoyly transition info Energy tetivetion .. 1 . . . . Act . . . Brengo . . enfuggul . stativ Products Comodo R...... Lo.P20H Reaction coordinate .tweig Starting :: Materials ... produits... 20+ 0 + R → reaction co-ordinate .. . www.anton-Parco . . 1 1 . * -guis . Butterly trinition state Contented process via i op wise prees Thir -> .......... ::::::omo e res Hokep . . fast...... .. * by obsaiking both diagrains above via the bultayly transition state by lowering the activection . sneagy produit formation is fast and efficient in concerted reaction where of. In case of .. Scaledep wise it process. Activation evenegy high check pant @ and point 6 h : CamScanner ...