Pyridine → Ethyl-3-Chloromethyl-4-oxo-3-H-phthalazin-1-ylacetate

反応式

[CH2:1]([O:3][C:4](=[O:19])[CH2:5][C:6]1[C:15]2[C:10](=[CH:11][CH:12]=[CH:13][CH:14]=2)[C:9](=[O:16])[N:8]([CH2:17]O)[N:7]=1)[CH3:2].CS([Cl:24])(=O)=O.N1C=CC=CC=1>C(Cl)Cl>[CH2:1]([O:3][C:4](=[O:19])[CH2:5][C:6]1[C:15]2[C:10](=[CH:11][CH:12]=[CH:13][CH:14]=2)[C:9](=[O:16])[N:8]([CH2:17][Cl:24])[N:7]=1)[CH3:2]

参加物

実験手順

A solution of ethyl-3-hydroxymethyl-4-oxo-3-H-phthalazin-1-ylacetate (1.31 g) and methanesulfonyl chloride (0.69 g) in methylene chloride (10 ml) containing pyridine (0.8 ml) was stirred at room temperature overnight. Upon evaporation of methylene chloride and purification of the residue by chromatography on silica gel, eluting with a mixture of a chloroform and ethyl acetate (9:1), the title product was obtained (yield: 0.51 g; m.p. 99°-100° C.).