反应详情

Combine 3-(2-nitrovinyl)-6-ethoxycarbonyl-1H-indole (4.0 g, 15.37 mmol) and NaBH4 (726.7 mg, 19.21 mmol) in 100 ml of THF/Methanol (9:1) and stir at ambient temperature. After 1.5 hours, concentrate to residue. Partition the residue between brine and ethyl acetate, wash with brine, combine the organic layers, dry (Na2SO4), then evaporate to give the title compound as a yellow powder: mp 124-127° C. MS (ACPI): m/e 263.0 (M+1). Analysis for C13H14N2O4: Calcd: C, 59.54; H, 5.38; N, 10.68. found: C, 59.40; H, 5.36; N, 10.53.

1. concentrationconcentrate to residue
2. customPartition the residue between brine and ethyl acetate
3. washwash with brine
4. dry with materialdry (Na2SO4)
5. customevaporate