Styrene derivatives are very useful chemical intermediates. For preparing both β-substituted or unsubstituted styrene, the Heck reaction is a powerful method. 1 However, the palladium-catalyzed arylation of enol esters provides substituted 2-arylaldehydes and ketones as major products. 2 These styrene derivatives can also be prepared from organometallic reagents such as vinylic stannanes 3 or silanes, 4 which are synthesized via an intermediate vinyl-palladium ...
