In order to prepare β-stannyl dienoate 3-6, a stepwise activation approach using 1,3-cyclohexanedione (6-2) was initially pursued (Scheme 6B). Sequential formation of the βethoxyenone, methylation at the ketone α-position, and tributylstannyl lithium addition gave rise to 6-1 in 26% yield over three steps. Although this protocol was viable to produce large quantities of the desired β-stannyl enone (6-1), we hypothesized that it would be possible to generate it directly from the enone precursor, thereby avoiding the costly 1,3-diketones.