Sulfuric Acid → 6-[1,2]Oxazinan-2-yl-N,N'-dipropyl-[1,3,5]triazine-2,4-diamine hydrogen sulfate

Participants

Reaction Steps

6-[1,2]Oxazinan-2-yl-N,N′-di-n-propyl-[1,3,5]triazine-2,4-diamine hydrogen sulfate (LVIII) was prepared from 6-[1,2]oxazinan-2-yl-N,N′-di-n-propyl-[1,3,5]triazine-2,4-diamine (LVII) and 95% H2SO4 as described in Example 20. Quantitative yield was isolated. 400 MHz 1H-NMR (DMSO-d6, ppm) 11.6-11.3 (1H, br s), 8.61-8.41 (0.8H, m), 8.18-8.03 (0.2H, m), 7.63-7.28 (1H, m), 4.14-4.08 (2H, m), 3.92-3.81 (2H, m, overlapped with water), 3.36-3.19 (4H, m), 1.86-1.78 (2H, m), 1.77-1.68 (2H, m), 1.6-1.45 (4H, m), 1.60-1.45 (6H, m). ESI-MS (m/z): 281 [M+H]+. M.P.: 134-137° C.

Provenance & Evidence