Pyridinium, 1-(2,4-dinitrophenyl)-, chloride (1:1) → HCID 67705543, compound

Participants

Reaction Steps

A solution of (2R,4S)-1-allyloxycarbonyl-2-(2aminoethyl)4-(triphenylmethylthio) pyrrolidine (5.78 g) and 1-(2,4-dinitrophenyl)pyridinium chloride (4.19 g) in n-butanol (60 ml) was stirred under reflux condition for 4 hours, and then evaporated under reduced pressure. The residue was column chromatographed on silica gel (chloroform:methanol=5:1 to 4:1) to give (2R,4S)-1-allyloxycarbonyl-2-{2-(1-pyridinio)ethyl}-4(triphenylmethylthio)pyrrolidine chloride (5.88 g).

Provenance & Evidence