Water → HCID 43518238, compound

Participants

Reaction Steps

The coupled product 30 (12.00 g, 44.73 mmol) was reduced with sodium hydrosulfite (30.47 g, 175.00 mmol) in a mixture of THF (75 mL), water (100 mL), and dioxane (45 mL). After the reaction is complete, volatile organic solvents were removed in vacuo and the precipitate in the remaining water was collected via vacuum filtration to afford compound 31 as a white solid (9.50 g, 89.0% yield, 99.5% pure). 1H NMR (500 MHz, DMSO-d6): δ 7.19 (d, J=8 Hz, 1H), 7.07 (d, J=2 Hz, 1H), 6.94 (d, J=8 Hz, 1H), 6.86 (dd, J1=8 Hz, J2=2 Hz, 1H), 6.74 (s, 1H), 6.45 (d, J=8 Hz, 1H), 5.52 (s, 2H), 2.23 (s, 3H), 2.08 (s, 3H).

Provenance & Evidence