Acetic Acid → HCID 10156762, compound

HRID 1179053Notes

Reaction equation

HRID 1179053 reaction equation
[NH2:1][C:2]1[C:14]2[CH2:13][C:12]3[C:7](=[CH:8][CH:9]=[CH:10][CH:11]=3)[C:6]=2[CH:5]=[CH:4][CH:3]=1.[CH3:15][N:16]([CH3:30])[C:17]1([C:24]2[CH:29]=[CH:28][CH:27]=[CH:26][CH:25]=2)[CH2:22][CH2:21][C:20](=O)[CH2:19][CH2:18]1.C(O)(=O)C.C(O[BH-](OC(=O)C)OC(=O)C)(=O)C.[Na+]>ClCCCl>[C:2]1([NH:1][CH:20]2[CH2:19][CH2:18][C:17]([C:24]3[CH:25]=[CH:26][CH:27]=[CH:28][CH:29]=3)([N:16]([CH3:30])[CH3:15])[CH2:22][CH2:21]2)[C:14]2[CH2:13][C:12]3[C:7](=[CH:8][CH:9]=[CH:10][CH:11]=3)[C:6]=2[CH:5]=[CH:4][CH:3]=1

Participants

6

Reactant 4

HCID 176Acetic AcidHCID 22817Fluoren-1-amineHCID 5049666Sodium triacetoxyborohydrideHCID 114244924-(Dimethylamino)-4-phenylcyclohexan-1-one

Product 1

HCID 10156762HCID 10156762, compoundYield 52.3%

Reagents, catalysts & solvents 1

HCID 111,2-DichloroethaneSolvent

Procedure

1-Aminofluorene (181 mg, 1 mmol) and 4-dimethylamino-4-phenylcyclohexanone (217 mg, 1 mmol) were dissolved in dry 1,2-dichloroethane (10 ml) under argon. Glacial acetic acid (1 mmol) and sodium triacetoxyborohydride (300 mg) were added to this mixture and the mixture was stirred for 24 hours at RT. For working up, the mixture was concentrated and the residue was adjusted to pH 11 with five molar sodium hydroxide solution. The alkaline phase was diluted with water (10 ml) and extracted with ethyl acetate (4×20 ml). The combined extracts were dried over sodium sulfate and filtered and the filtrate was concentrated. The crude product was chromatographed over silica gel with ethyl acetate/ethanol (1:1). 200 mg N′-(9H-fluoren-1-yl)-N,N-dimethyl-1-phenyl-cyclohexane-1,4-diamine were obtained as a colorless oil, which, for preparation of the hydrochloride, was dissolved in 2-butanone (5 ml), and 1.85 M ethanolic HCl (0.7 ml) was added. The N′-(9H-fluoren-1-yl)-N,N-dimethyl-1-phenyl-cyclohexane-1,4-diamine dihydrochloride obtained was filtered off with suction and dried (220 mg, m.p. 223-225° C.).

Workup

  1. concentrationthe mixture was concentrated
  2. additionThe alkaline phase was diluted with water (10 ml)
  3. extractionextracted with ethyl acetate (4×20 ml)
  4. dry with materialThe combined extracts were dried over sodium sulfate
  5. filtrationfiltered
  6. concentrationthe filtrate was concentrated
  7. customThe crude product was chromatographed over silica gel with ethyl acetate/ethanol (1:1)

Sources & evidence

ORD record
ord-477bdf76e8844645b774696177920bca
Source dataset
uspto-grants-2007_10
Patent number
US07276518B2

Reaction notes

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