Reaction #433624

ord-7fb5f408d1d94a7aaf96edec9d7d066b

Solvents

Conditions

Detailed conditions
See reaction.notes.procedure_details.

Workup

  1. 1
    Otherthe solvent was removed

Procedure

To a solution of 110 mg (0.388 mmol) of 3 in methanol, 880 mg (10 eq) of 2,3-Dichloro-5,6-dicyano-1,4-benzoquinone (DDQ) was added. The reaction mixture was stirred for 2 hr, and then the solvent was removed. Silicagel chromatography (hexane:EA=20:1) gave 4 as an orange solid with quantitative yield.

Source

DOI: 10.6084/m9.figshare.5104873.v1Patent: US07172905B2uspto-grants-2007_02