Hydrochloric Acid → 5-[6-(4-Methoxy-phenyl)-4,7-dihydro-1-thia-4,5-diaza-cyclopenta[a]pentalen-2-yl]-pyridin-3-ylamine hydrochloride

Participants

Reaction Conditions

Reaction Steps

5-[6-(4-Methoxy-phenyl)-4-(2-trimethylsilanyl-ethoxymethyl)-4,7-dihydro-1-thia-4,5-diaza-cyclopenta[a]pentalen-2-yl]-pyridin-3-ylamine (0.39 g, 0.8 mmol) was dissolved in MeOH and treated with concentrated HCl (0.25 mL, 8 mmol). The reaction mixture was heated at 100° C. for 4 hr. The solution was cooled to room temperature and the resultant precipitate was filtered, washed with MeOH and concentrated under reduced pressure to provide the corresponding 5-[6-(4-Methoxy-phenyl)-4,7-dihydro-1-thia-4,5-diaza-cyclopenta[a]pentalen-2-yl]-pyridin-3-ylamine hydrochloride (0.21 g, 0.57 mmol) as yellow solid in 71% yield.

Provenance & Evidence