[I-].[CH3:2][C:3]([CH3:13])([CH3:12])[C:4](=[O:11])[CH2:5][CH2:6][N+](C)(C)C.[Cl:14][C:15]1[CH:16]=[CH:17][C:18]([NH:21][C:22](=[S:24])[S-:23])=[N:19][CH:20]=1.C([NH+](CC)CC)C.O>C(#N)C>[Cl:14][C:15]1[CH:16]=[CH:17][C:18]([NH:21][C:22](=[S:23])[S:24][CH2:6][CH2:5][C:4](=[O:11])[C:3]([CH3:2])([CH3:12])[CH3:13])=[N:19][CH:20]=1(4,4-Dimethyl-3-oxopentyl)-trimethylammonium iodide (6.0 g) is added, at 20° C., to a suspension of triethylammonium 5-chloropyrid-2-yldithiocarbamate (6.1 g) in anhydrous acetonitrile (25 cc). The reaction is allowed to proceed for 6 hours at 20° C. Distilled water (25 cc) is added. The crystals which have appeared are filtered off, washed three times with distilled water (30 cc in total) and dried in air at 20° C. The resulting product (5.1 g; m.p.=110° C.) is recrystallised from acetonitrile (15 cc). 4,4-Dimethyl-3-oxopentyl 5-chloropyrid-2-yldithiocarbamate (3.8 g), which melts at 111° C., is obtained.
Wird geladen…
