Malononitrile → 4-Chloro-3-dicyanomethylene-5-ethoxycarbonyl-2-methyl-4-isothiazoline
反応式
FS([O-])(=O)=O.Cl[C:7]1[C:11]([Cl:12])=[C:10]([C:13]([O:15][CH2:16][CH3:17])=[O:14])[S:9][N+:8]=1[CH3:18].[C:19](#[N:23])[CH2:20][C:21]#[N:22]>C(O)(C)C>[Cl:12][C:11]1[C:7](=[C:20]([C:19]#[N:23])[C:21]#[N:22])[N:8]([CH3:18])[S:9][C:10]=1[C:13]([O:15][CH2:16][CH3:17])=[O:14]参加物
4
実験手順
3,4-Dichloro-5-ethoxycarbonyl-2-methylisothiazolium fluorosulfonate (7.5 g, 0.022 mole) was dissolved in 75 ml of isopropanol. Malononitrile (1.5 g, 0.023 mol) was added the mixture stirred for 30 min. The yellow solid was collected and washed with isopropanol to yield 2.6 g (44%) of product, mp 134-136. Analysis--Calculated for C10H8ClN3O2SO2 : C 44.51; H, 3.00; Cl, 13.16; N, 15.57; S, 11.90. Found: C, 44.34; H, 2.82; Cl, 12.60; N, 14.82; S, 11.42.