반응 #44505

ord-e40caf334b0742ffaf4ef4909375fc79

반응 조건

상세 조건
See reaction.notes.procedure_details.

후처리

  1. 1
    기타The solvent was evaporated in vacuo and product
  2. 2
    기타purified by flash column chromatography (hexanes:ethyl acetate 100:0 to 80:20)

실험 절차

To a solution of Example 8C (2.2 g, 6.28 mmoles) and Rh2(OAc)4 (2 mg, 4.3 μmol) in dichloromethane (2 mL), ethyl diazoacetate (0.717 g, 6.28 mmoles) in dichloromethane (4 mL) was added over two hours via a syringe pump. The solvent was evaporated in vacuo and product purified by flash column chromatography (hexanes:ethyl acetate 100:0 to 80:20) to provide the title compound.

출처

DOI: 10.6084/m9.figshare.5104873.v1특허: US07737137B2uspto-grants-2010_06