Reaction #2336531

ord-64b12cad1be34755b72490c9202d3f0a

Conditions

Detailed conditions
See reaction.notes.procedure_details.

Workup

  1. 1
    OtherThe mixture was isolated
  2. 2
    Otherto give a yellow solid
  3. 3
    OtherThe solid was purified by flash column chromatography (
  4. 4
    Washgradient elution

Procedure

4-Methylthiophenol (3.41 g, 27.5 mmol), potassium carbonate (3.80 g, 27.5 mmol) and ditosylated dicyanohydroquinone (i.e. product A) (5.00 g, 10.7 mmol) in DMF (40 mL) were reacted as described above. The mixture was isolated as described above to give a yellow solid. The solid was purified by flash column chromatography (gradient elution: 5%-10%-30% ethyl acetate:isohexane, finally dichloromethane) to give the title compound as a yellow solid (2.07 g, 52%). [Found: C, 69.9%; H, 4.4%; N, 7.3%; S, 16.9%; C22H16N2S2 requires C, 70.9%, H, 4.3%, N, 7.5%, S, 17.2%]; MS (EI+) 372 (M+, 100%), 357 (M-CH3, 5%), 123 (CH3C6H4S, 15), 91 (CH3C6H4, 15).

Source

DOI: 10.6084/m9.figshare.5104873.v1Patent: US07314511B2uspto-grants-2008_01