HRID39031

反应详情

EQUATION

反应方程式

HRID 39031 的结构方程式

AUXILIARIES

试剂、催化剂与溶剂

2

PROCEDURE

实验过程

A mixture of ethyl 7-(methylsulfonyl)-4-oxo-4H-chromene-2-carboxylate (1.3 g, 4.4 mmol), palladium on carbon (10%, 0.44 g), MeOH (45 ml) and AcOH (5 ml) was hydrogenated at 40 Psi for 64 h at 60° C. Filtration through Celite (EtOAc) and evaporation followed by filtration through a plug of Al2O3 (EtOAc/ACN) gave the title compound. Yield: 0.6 g. MS m/z (rel. intensity, 70 eV) 307 (64), 302 (91), 286 (14), 285 (M+1, bp), 211 (18).

WORKUP

后处理

  1. filtrationFiltration
  2. customthrough Celite (EtOAc) and evaporation
  3. filtrationfollowed by filtration through a plug of Al2O3 (EtOAc/ACN)