Bromocyclopentane → 2-(2,3-Dimethyl-6-nitrophenylimino)-1-cyclopentyl-3-thia-1-azaspiro[4.4]nonane
Reaktionsgleichung
[CH3:1][C:2]1[C:7]([CH3:8])=[CH:6][CH:5]=[C:4]([N+:9]([O-:11])=[O:10])[C:3]=1[N:12]=[C:13]1[S:17][CH2:16][C:15]2([CH2:21][CH2:20][CH2:19][CH2:18]2)[NH:14]1.[CH:22]1(Br)[CH2:26][CH2:25][CH2:24][CH2:23]1>>[CH3:1][C:2]1[C:7]([CH3:8])=[CH:6][CH:5]=[C:4]([N+:9]([O-:11])=[O:10])[C:3]=1[N:12]=[C:13]1[S:17][CH2:16][C:15]2([CH2:21][CH2:20][CH2:19][CH2:18]2)[N:14]1[CH:22]1[CH2:26][CH2:25][CH2:24][CH2:23]1Komponenten
3
Versuchsvorschrift
2,3-Dimethylaniline was protected as 2,3-dimethylacetanilide according to Method A2a, step 1. The acetamide was converted to 2,3-dimethyl-6-nitroaniline, then deprotected according to Method A2a, step 2. The aniline was converted to 2,-dimethyl-6-nitrophenyl isothiocyanate according to Method A2a, step 3. 1-Hydroxymethylcyclopentanamine was prepared according to Method B1c. The 2-hydroxyethylamine was converted to 1-chloromethylcyclopentanamine HCl salt according to Method B7e. 1-Chloromethylcyclopentanamine HCl salt was reacted with 2,3-dimethyl-6-nitrophenyl isothiocyanate according to Method C1e to give 2-(2,3-dimethyl-6-nitrophenylimino)-3-thia-1-azaspiro[4.4]nonane. The thiazolidine was reacted with cyclopentyl bromide according to Method D2b to give 2-(2,3-dimethyl-6-nitrophenylimino)-1-cyclopentyl-3-thia-1-azaspiro[4.4]nonane.