Sodium Hydroxide → 8-chloro-2,3,4,5-tetrahydro-1-methyl-1H-3-benzazepine

HRID 2389446Notes

Reaction equation

HRID 2389446 reaction equation
FC(F)(F)C([N:5]1[CH2:11][CH:10]([CH3:12])[C:9]2[CH:13]=[C:14]([Cl:17])[CH:15]=[CH:16][C:8]=2[CH2:7][CH2:6]1)=O.[OH-].[Na+]>CO>[Cl:17][C:14]1[CH:15]=[CH:16][C:8]2[CH2:7][CH2:6][NH:5][CH2:11][CH:10]([CH3:12])[C:9]=2[CH:13]=1

Participants

4

Reactant 2

HCID 14798Sodium HydroxideHCID 22292806N-trifluoroacetyl-8-chloro-1-methyl-2,3,4,5-tetrahydro-1H-3-benzazepine

Product 1

HCID 104652638-chloro-2,3,4,5-tetrahydro-1-methyl-1H-3-benzazepineYield 81.3%

Reagents, catalysts & solvents 1

HCID 887MethanolSolvent

Procedure

A solution of N-trifluoroacetyl-8-chloro-1-methyl-2,3,4,5-tetrahydro-1H-3-benzazepine (65 mg, 0.22 mmol) in methanol (2 mL) was treated with 15% aqueous NaOH (2 mL), and stirred for 3.5 hours at 60 C. The product mixture was concentrated, extracted 3 times with CH2Cl2 (5 mL), dried with Na2SO4 and concentrated to give 35 mg of a clear oil. 1H NMR (400 MHz, CDCl3) d 7.11 (s, 1H), 7.05 (d, J=8 Hz, 1H), 6.98 (d, J=8 Hz, 1H), 3.1-2.9 (m, 6H), 2.71 (m, 1H), 2.68 (bs, 1H), 1.32 (d, J=8 Hz, 3H). MS calculated for C11H14ClN+H: 196, observed: 196.

Workup

  1. concentrationThe product mixture was concentrated
  2. extractionextracted 3 times with CH2Cl2 (5 mL)
  3. dry with materialdried with Na2SO4
  4. concentrationconcentrated

Sources & evidence

ORD record
ord-a41a2a681a2244658231699700187717
Source dataset
uspto-grants-2012_09
Patent number
US08273734B1

Reaction notes

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