O S O O 250 °C, benzene or 450 °C, gas phase H2O2 reflux 2 1 3 ... Synthesis and Diels–Alder reactions of a,b-unsaturated g-sultone ... Albert WM Lee,* WH Chan,* LS Jiang and KW Poon Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Kowloon, Hong Kong ... An efficient synthesis of prop-1-ene 1,3-sultone 1 and its Diels–Alder reactions are reported; ring-opening reactions of the cycloadducts with nucleophiles and ...