Phenyl isocyanate → HCID 18008911, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of the compound (200 mg, 519 μmol) of Example 5 in N,N-dimethylformamide (5 ml) were added phenyl isocyanate (67.6 μl, 622 μmol) and successively triethylamine (108 μl, 778 μmol), and the mixture was stirred for 1 hour at 60° C. Triethylamine (723 μl, 5.19 mmol) was added to the reaction mixture, which was stirred for 4 hours at 100° C. The residue obtained by concentrating the reaction mixture under reduced pressure was submitted to silica gel column chromatography [dichloromethane-ethanol=20:1] to obtain 64.1 mg of title compound as yellow powder. Yield 26%.

Provenance & Evidence