p-Toluenesulfonic acid → HCID 11821668, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of 30 g 3,5-dinitrobenzoic acid, 0.8 g p-toluenesulfonic acid and 100 ml 1,3-propanediol was stirred 9 hours at 110° C. After cooling, a white product crystallized and was separated from solution by filtration after adding a large quantity of water. The product was recrystallized from methanol to provide 77% white crystals with m.p. 76° C. IR: 1712 cm-1 (carbozyl) 1535 cm-1 (nitro asymmetric), 1341 cm-1 (nitro symmetric). 1H-NMR (DMSOd6): 9.05 ppm (C4), 8.93 ppm (C2, C6), 4.47 ppm (CH2OCO, triplet) 3.62 ppm (CH2O, triplet), 1.94 ppm (CH2 multiplet).

Provenance & Evidence