Water → 2,6-dichloro-9-(propan-2-yl)-9H-purine

Participants

Reaction Conditions

Reaction Steps

To 2,6-dichloro-9H-purine (a) (998 g, 5.28 mol) dissolved in anhydrous DMF (5.0 L) was added sodium hydride (60% dispersion, 254 g, 6.35 mol) with stirring at 10° C. over 1 hr. 2-iodopropane (1595 g) was added and the mixture was stirred at rt for 24 hr. Water (5.0 L) was added, and the resulting solid precipitate was collected and washed with water (500 ml) and heptane (2×2.5 L). The crude solid was crystallized from isopropyl acetate (2.1 L) to provide the title compound as a solid.

Provenance & Evidence