Synthesis of β-chloro, β-bromo, and β-iodo α,β-unsaturated ketones

Article abstract of DOI:10.1139/v82-033

A new, efficient method for the preparation of β-chloro, β-bromo, and β-iodo α,β-unsaturated ketones is described.The method involves the reaction of β-diketones or α-hydroxymethylenecycloalkanones with triphenylphosphine dihalides in the presence of trie