A dried vial (4 mL) with triflate (0.038 g, 0.082 mmol, 1.0 equiv), tetrakis[triphenylphosphine]palladium (0.142 g, 0.123 mmol, 1.5 equiv) and copper(I) chloride (0.014 g, 0.123 mmol, 1.5 equiv) was evacuated and refilled with carbon monoxide three times. To this vial was added degassed dimethyl sulfoxide (150 micro L), and the mixture was heated to 55 °C. A solution of stannane (0.028 g, 0.098 mmol, 1.2 equiv) in degassed dimethyl sulfoxide (100 micro L) was added at same temperature. The suspension was stirred at 55 °C for 45 min. The mixture was then cooled to 23 °C and directly purified by silica gel column chromatography (gradient 10% -> 15% ethyl acetate-hexanes) to give enome and as colorless oil (0.025 g, 66%): Rf = 0.21 (40% ethyl acetate-hexanes)