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Acetonitrile → 8-benzyl-2-chloro-N-methyl-N-(1-methylethyl)-6,7,8,9-tetrahydropyrazino[2,3-f][1,4]oxazepin-3-amine

HRID 518082
Notes
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Reaction equation

HRID 518082 reaction equation
[CH2:1]([N:8]1[CH2:14][C:13]2[N:15]=[CH:16][C:17]([N:19]([CH3:23])[CH:20]([CH3:22])[CH3:21])=[N:18][C:12]=2[O:11][CH2:10][CH2:9]1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[Cl:24]N1C(=O)CCC1=O.C(#N)C>O>[CH2:1]([N:8]1[CH2:14][C:13]2[N:15]=[C:16]([Cl:24])[C:17]([N:19]([CH3:23])[CH:20]([CH3:21])[CH3:22])=[N:18][C:12]=2[O:11][CH2:10][CH2:9]1)[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1
ParticipantsConditionsProcedureWorkupSources & evidenceReaction notes

Participants

5

Reactant 3

HCID 6342AcetonitrileHCID 31398ChlorosuccinimideHCID 669936178-benzyl-N-methyl-N-(1-methylethyl)-6,7,8,9-tetrahydropyrazino[2,3-f][1,4]oxazepin-3-amine

Product 1

HCID 866490038-benzyl-2-chloro-N-methyl-N-(1-methylethyl)-6,7,8,9-tetrahydropyrazino[2,3-f][1,4]oxazepin-3-amineYield 79%

Reagents, catalysts & solvents 1

HCID 962
Water
Solvent

Conditions

Temperature
50 °C

Procedure

A mixture of 8-benzyl-N-methyl-N-(1-methylethyl)-6,7,8,9-tetrahydropyrazino[2,3-f][1,4]oxazepin-3-amine (500 mg), N-chlorosuccinimide (257 mg) and acetonitrile (10 mL) was stirred at room temperature for 16 hr and at 50° C. for 24 hr. Water was added, and the mixture was extracted with ethyl acetate. The organic layer was washed with water and saturated brine, dried over sodium sulfate, and concentrated under reduced pressure. The obtained residue was purified by silica gel column chromatography (solvent gradient: 0-+40% ethyl acetate/hexane) to give the title compound (437 mg, 79%) as a yellow oil.

Workup

  1. extractionthe mixture was extracted with ethyl acetate
  2. washThe organic layer was washed with water and saturated brine
  3. dry with materialdried over sodium sulfate
  4. concentrationconcentrated under reduced pressure
  5. customThe obtained residue was purified by silica gel column chromatography (solvent gradient: 0-+40% ethyl acetate/hexane)

Sources & evidence

ORD record
ord-b328cdf4446147769041714affe59455
Source dataset
uspto-grants-2015_08
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US09115139B2

Reaction notes

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On this pageParticipantsConditionsProcedureWorkupSources & evidenceReaction notes