Dimethylamine → 2-[2-(Dimethylamino)ethyl]-2,3-dihydro-4-methylpyrido[4,3-f][1,4]-oxazepine-5(4H)-thione hydrochloride

HRID 236173Notes

Reaction equation

HRID 236173 reaction equation
[Cl:1][CH2:2][CH2:3][CH:4]1[CH2:10][N:9]([CH3:11])[C:8](=[S:12])[C:7]2[CH:13]=[CH:14][N:15]=[CH:16][C:6]=2[O:5]1.[CH3:17][NH:18][CH3:19]>C(O)C>[ClH:1].[CH3:17][N:18]([CH3:19])[CH2:2][CH2:3][CH:4]1[CH2:10][N:9]([CH3:11])[C:8](=[S:12])[C:7]2[CH:13]=[CH:14][N:15]=[CH:16][C:6]=2[O:5]1

Participants

4

Reactant 2

HCID 674DimethylamineHCID 13726396HCID 13726396, compound

Product 1

HCID 137263992-[2-(Dimethylamino)ethyl]-2,3-dihydro-4-methylpyrido[4,3-f][1,4]-oxazepine-5(4H)-thione hydrochloride

Reagents, catalysts & solvents 1

HCID 702EthanolSolvent

Procedure

To a solution of 0.5 g (0.002 mole) of 2-(2-chloroethyl)-2,3-dihydro-4-methylpyrido[4,3-f][1,4]-oxazepine-5(4H)-thione in 20 ml of ethyl alcohol was added 2 ml of 40% aqueous dimethylamine. The mixture was heated in a steel bomb to 100° C. for 14 hr. The resulting solution was filtered and concentrated. The residue was dissolved in isopropyl alcohol and a few drops of ethereal hydrogen chloride were added. The hydrochloride salt crystals were recrystallized by dissolving in ethyl alcohol and boiling while replacing the ethyl alcohol with isopropyl alcohol. The yield of product was 0.3 g (47%), m.p.: decomp. above 200° C.

Workup

  1. filtrationThe resulting solution was filtered
  2. concentrationconcentrated
  3. dissolutionThe residue was dissolved in isopropyl alcohol
  4. additiona few drops of ethereal hydrogen chloride were added
  5. customThe hydrochloride salt crystals were recrystallized
  6. dissolutionby dissolving in ethyl alcohol
  7. customabove 200° C.

Sources & evidence

ORD record
ord-5540325cad594651ab1c8cee881a69fd
Source dataset
uspto-grants-1987_02
Patent number
US04642343

Reaction notes

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