Water → HCID 13937660, compound

Participants

Reaction Steps

A tetrahydrofuran solution (100 ml) of 8-oxo-cis-bicyclo[4,3,0]nona-3-ene (80g) was added to a tetrahydrofuran solution (1000 ml) of the ylide prepared with triethyl phosphonoacetate (160 g) and sodium hydride (60% mineral oil dispersion, 23.5 g). The mixture was stirred for 30 min. at room temperature and poured into water and then extracted with ethylacetate. The organic layer was washed with water, dried, concentrated under reduced pressure to give 8-ethoxycarbonylmethylene-cis-bicyclo[4,3,0]nona-3-ene.

Provenance & Evidence