Reaction #6021

ord-52fd80fbaf8b482ba702acb847f8a77a

Solvents

Conditions

Detailed conditions
See reaction.notes.procedure_details.

Workup

  1. 1
    ConcentrationThe reaction mixture was concentrated in vacuo
  2. 2
    Otherchromatographed on silica gel (125×20 mm)
  3. 3
    Washeluting with 5% ethyl acetate in hexane
  4. 4
    OtherThe product was isolated in a 73% yield (186 mg)

Procedure

A solution of the product of Example 3, Step B (0.2 g, 0.69 mmol), N-bromosuccinimide (117 mg, 166 mmol) and a catalytic amount of AIBN in 2 ml CCl4 was refluxed for 30 minutes. The reaction mixture was concentrated in vacuo and chromatographed on silica gel (125×20 mm) eluting with 5% ethyl acetate in hexane. The product was isolated in a 73% yield (186 mg).

Source

DOI: 10.6084/m9.figshare.5104873.v1Patent: US05246944uspto-grants-1993_09