Sodium Carbonate → 5-(3-Benzyloxy-7-vinylnaphthalen-2-yl)-1,1-dioxo-1,2,5-thiadiazolidin-3-one

Participants

Reaction Conditions

Reaction Steps

To a microwave vial containing 5-(3-benzyloxy-7-bromonaphthalen-2-yl)-1,1-dioxo-1,2,5-thiadiazolidin-3-one (Example 3, step D) (0.21 g, 0.46 mmol), vinylboronic acid dibutyl ester (0.20 mL, 0.92 mmol), and PS-tetrakistriphenylphosphine palladium (0.36 mg, 0.046 mmol) in DME (4 mL) is added Na2CO3 (2.0M, 0.92 mL, 1.83 mmol). This is stirred in the microwave at 110° C. for 10 min, at which time LC/MS reveals complete conversion to the desired product. The resin-bound palladium is removed by filtration and the filtrate is concentrated in vacuo, and purified by reverse-phase Biotage MPLC to afford 5-(3-benzyloxy-7-vinylnaphthalen-2-yl)-1,1-dioxo-1,2,5-thiadiazolidin-3-one as a light brown oil.

Provenance & Evidence