HRID322508

反应详情

EQUATION

反应方程式

HRID 322508 的结构方程式

PROCEDURE

实验过程

A mixture of 5-11 (100 mg, 0.22 mmol), 1N NaOH (300 μL), and ethanol (1 mL) was stirred at ambient temperature for 1 hr, followed by concentration. Flash chromatography (silica, 25:10:1:1 to 15:10:1:1 EtOAc/EtOH/NH4OH/H2O) gave 5-12 as a white solid. TLC RF=0.22 (silica, 10:10:1:1 EtOAc/ethanol/NH4OH, H2O); 1H NMR (300 MHz, CD3OD) δ 8.66 (m, 1H), 8.39 (m, 1H), 7.95 (m, 1H), 7.53 (d, J=8 Hz, 1H), 7.40 (m, 1H), 6.66 (d, J=8 Hz,1H), 5.1 8 (m, 1H), 4.27 (d, J=7 Hz, 1H), 4.16 (m, 1H), 3.64 (d, J=7 Hz, 1H), 3.50-3.10 (m, 8H), 3.00-2.65 (m, 6H), 1.95 (m, 4H).

WORKUP

后处理

  1. concentrationfollowed by concentration