反应 #2038165
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openreactiondata ↗doi:10.6084/m9.figshare.5104873.v1; patent:US09120774B2
反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.
实验步骤: A solution of 13 (214 mg, 0.74 mmol) in MeOH (6.20 mL) was treated dropwise with 3 M HCl (0.22 mL, 5.92 mmol), then heated to reflux for one hour. Water (10 mL) was added and the solution was extracted with EtOAc (3×15 mL). Combined organic fractions were washed with saturated aqueous NaCl, dried (Na2SO4), and concentrated to afford 14 as a red amorphous solid (149 mg, 99%). 1H NMR (CDCl3, 400 MHz) δ 7.31 (d, J=6.6 Hz, 4H), 7.25-7.19 (m, 1H), 7.01 (t, J=8.1 Hz, 1H), 6.44 (d, J=8.1 Hz, 2H), 4.82 (s, 2H), 4.09 (s, 2H). heated to reflux for one hour the solution was extracted with EtOAc (3×15 mL) Combined organic fractions were washed with saturated aqueous NaCl dried (Na2SO4) concentrated
来源 ID: ord-afd2f47199474ff9a84e251b4174ea39