Sodium Hydroxide → HCID 19898931, compound

Participants

Reaction Conditions

Reaction Steps

Stannous chloride dihydrate (13.05 g) was dissolved in concentrated hydrochloric acid and stirred at 55° C. N-Methyl-N-(4-nitrophenethyl)-2-(2H-phthalazin-1-on-2-yl)ethylamine hydrochloride (7.5 g) was added portionwise over 1 hour and the solution was then heated a further 4 hours at 100° C. The partly cooled solution was poured onto crushed ice containing 500 ml of a 20% aqueous solution of sodium hydroxide and then extracted three times with methylene chloride. The resultant organic extracts were combined, dried (MgSO4), filtered and evaporated to give a pale yellow oil (6.0 g). Chromatography of the oil on silica [Merck "Kieselgel 60" (Trade Mark)] eluting with methylene chloride gave, after collection and evaporation of appropriate fractions, the title compound as a pale yellow oil (3.5 g) which was used in part (C) without further purification.

Provenance & Evidence