3-(Trifluoromethyl)benzyl chloride → 2-[(3-Trifluoromethylbenzyl)thio]-cis-4,5-diphenyl-4,5-dihydro-1H-imidazole Hydrochloride

HRID 18754

Reaction equation

HRID 18754 reaction equation
[C:1]1([C@H:7]2[C@@H:11]([C:12]3[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=3)[NH:10][C:9](=[S:18])[NH:8]2)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[F:19][C:20]([F:30])([F:29])[C:21]1[CH:22]=[C:23]([CH:26]=[CH:27][CH:28]=1)[CH2:24][Cl:25]>CCO>[ClH:25].[F:19][C:20]([F:29])([F:30])[C:21]1[CH:22]=[C:23]([CH:26]=[CH:27][CH:28]=1)[CH2:24][S:18][C:9]1[NH:8][C@H:7]([C:1]2[CH:2]=[CH:3][CH:4]=[CH:5][CH:6]=2)[C@H:11]([C:12]2[CH:13]=[CH:14][CH:15]=[CH:16][CH:17]=2)[N:10]=1

Participants

4

Reactant 2

HCID 697163-(Trifluoromethyl)benzyl chlorideHCID 45258634cis-4,5-Diphenylimidazolidine-2-thione

Product 1

HCID 685671332-[(3-Trifluoromethylbenzyl)thio]-cis-4,5-diphenyl-4,5-dihydro-1H-imidazole HydrochlorideYield 55.5%

Reagents, catalysts & solvents 1

HCID 702EthanolSolvent

Procedure

A mixture of intermediate 25 (200 mg, 0.786 mmol) and 3-trifluoromethylbenzyl chloride (0.243 mL, 1.57 mmol) in abs. EtOH (2 mL) is heated at 95° C. for 24 h. The reaction mixture is cooled to RT, evaporated to dryness, and the residue suspended in Et2O. The insoluble material is filtered to give 196 mg of the product 202. 1H NMR (DMSO-d6) δ 11.32 (s, 2 H), 8.10-7.65 (m, 4 H), 7.15-6.95 (m, 6 H), 6.90-6.60 (m, 4 H), 5.78 (s, 2 H), 4.93 (s, 2 H); MS: m/z 413 (M++1).

Workup

  1. customevaporated to dryness
  2. filtrationThe insoluble material is filtered

Sources & evidence

ORD record
ord-e67f4e8fc0d9441fbf3b9cfecc6b4d92
Source dataset
uspto-grants-2010_06
Patent number
US07741493B2

Linked notes

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