Cycloaddition of Alkenyl Sulfide with α,β-Unsaturated Ketone. A Convenient Route to 1-Cyclobutenyl Ketones

Article abstract of DOI:10.1246/cl.1986.1311

2-Phenylthiocyclobutyl ketones were produced by the reaction of alkenyl sulfides with α,β-unsaturated ketones in the presence of AlCl3.The oxidation with MCPBA and the treatment with LDA or KH of the cycloadducts afford the corresponding 1-cyclobutenyl ke