Bromocyclopentane → 2-(2,3-Dimethyl-6-nitrophenylimino)-1-cyclopentyl-3-thia-1-azaspiro[4.4]nonane

HRID 276610Notes

Reaction equation

[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]1

Participants

Reactant 2

HCID 8728Bromocyclopentane

HCID 178426721HCID 178426721, compound

Product 1

HCID 183161882-(2,3-Dimethyl-6-nitrophenylimino)-1-cyclopentyl-3-thia-1-azaspiro[4.4]nonane

Procedure

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.

Sources & evidence

ORD record: ord-6fd6fad5212f47faa8b062bca731ac7b
Source dataset: uspto-grants-2002_03
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US06353006B1

Reaction notes

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