SEARCH Articles Figures Tables A Novel Synthesis of Vinyl Ethers via an Unusual Exchange Reaction A-Allokainic acid via intramolecular ene reaction A-Cartopterone via retro Diels-Alder reaction A-Caryopterone via retro Diels-Alder reaction A-Cuparenone via cycloaddition reactions A-Kainic acid via intramolecular ene reaction A-Santalol via Wittig reaction A-Skytanthine via magnesium-ene reaction Cyclopentenes via reaction of allenylsilanes with a,p-unsaturated Gas-Surface Reactions Proceeding via a Strongly Adsorbed Precursor Ketals, a-hydroxy via Homer reaction Ketones, a-aryl via SrnI reaction Lactones, a-methylenesynthesis via dehydrogenation reactions Other Catalytic Reactions via Allenylidene Complexes as Key Intermediates Reaction Mechanism via a 1,2-Oxasiletanide Reactions at a Group VIA Metal Center