Name is Phthalazin-1(2H)-one, as a common heterocyclic compound, it belongs to phthalazine compound, and cas is 119-39-1, its synthesis route is as follows.
General procedure: The reaction was carried out under argon. To a stirred suspension of sodium hydride (4.25 mol) in dry DMF (10 cm3) was added slowly a solution of 2H-phthalazin-1-one 2 (3.95¡Á10-3 mol) in dry DMF (50 cm3). The reaction mixture was stirred at room temperature for 45 minutes. Next, the whole lot was cooled to 0 C and the solution of N-(2-bromoethyl)phthalimide (5.92¡Á10-3 mol) in dry DMF (10 cm3) was added in portions. At first the mixture was kept for 5 hours in 0 C and later for 16 hours in ambient temperature. After this time the reaction mixture was poured into ice-water mixture (100 cm3) and next extracted with CHCl3 (3¡Á50 cm3). The combined extracts were dried over MgSO4 and concentrated under vacuum. The isoindole-1,3-dione 3 was isolated by column chromatography or crystallization.
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Reference£º
Article; Malinowski, Zbigniew; Sroczy?ski, Dariusz; Szczes?niak, Aleksandra K.; Synthetic Communications; vol. 45; 15; (2015); p. 1743 – 1750;,
Phthalazine – Wikipedia
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