Benzoyl isothiocyanate → 1-Benzoyl-3-[1-(naphth-2-ylmethyl)piperid-4-yl]thiourea

HRID 3889

Reaction equation

HRID 3889 reaction equation
[NH2:1][CH:2]1[CH2:7][CH2:6][N:5]([CH2:8][C:9]2[CH:18]=[CH:17][C:16]3[C:11](=[CH:12][CH:13]=[CH:14][CH:15]=3)[CH:10]=2)[CH2:4][CH2:3]1.[C:19]([N:27]=[C:28]=[S:29])(=[O:26])[C:20]1[CH:25]=[CH:24][CH:23]=[CH:22][CH:21]=1>C1(C)C=CC=CC=1>[C:19]([NH:27][C:28]([NH:1][CH:2]1[CH2:3][CH2:4][N:5]([CH2:8][C:9]2[CH:18]=[CH:17][C:16]3[C:11](=[CH:12][CH:13]=[CH:14][CH:15]=3)[CH:10]=2)[CH2:6][CH2:7]1)=[S:29])(=[O:26])[C:20]1[CH:25]=[CH:24][CH:23]=[CH:22][CH:21]=1

Participants

4

Reactant 2

HCID 68284Benzoyl isothiocyanateHCID 111958234-Amino-1-(2-naphthyl)methylpiperidine

Product 1

HCID 129423461-Benzoyl-3-[1-(naphth-2-ylmethyl)piperid-4-yl]thiourea

Reagents, catalysts & solvents 1

HCID 1140TolueneSolvent

Procedure

4-Amino-1-(naphth-2-ylmethyl)piperidine (1.0 g, 0.0042 m) and benzoylisothiocyanate (0.69 g, 0.0042 m) in toluene (120 cm3) was stirred at room temperature for 6 hours. The solvent was evaporated and the gum dissolved in isopropyl alcohol and acidified with ethanolic HCl. The solvent was evaporated and the residue dissolved in ethyl acetate. The title compound crystallised and was filtered and dried as the monohydrochloride quarterhydrate salt, m.p. 212°-214° C.

Workup

  1. customThe solvent was evaporated
  2. dissolutionthe gum dissolved in isopropyl alcohol
  3. customThe solvent was evaporated
  4. dissolutionthe residue dissolved in ethyl acetate
  5. customThe title compound crystallised
  6. filtrationwas filtered
  7. dry with materialdried as the monohydrochloride quarterhydrate salt, m.p. 212°-214° C.

Sources & evidence

ORD record
ord-abd517df60204610939cf68a6c24b096
Source dataset
uspto-grants-1988_02
Patent number
US04722930

Linked notes

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