Water → 1,1-dimethylethyl 4-[2-methyl-5-(methyloxy)-4-nitrophenyl]hexahydro-1H-1,4-diazepine-1-carboxylate

HRID 419587Notes

Reaction equation

HRID 419587 reaction equation
[CH3:1][O:2][C:3]1[CH:8]=[C:7](F)[C:6]([CH3:10])=[CH:5][C:4]=1[N+:11]([O-:13])=[O:12].[N:14]1([C:21]([O:23][C:24]([CH3:27])([CH3:26])[CH3:25])=[O:22])[CH2:20][CH2:19][CH2:18][NH:17][CH2:16][CH2:15]1.C([O-])([O-])=O.[K+].[K+].O>CS(C)=O>[CH3:10][C:6]1[CH:5]=[C:4]([N+:11]([O-:13])=[O:12])[C:3]([O:2][CH3:1])=[CH:8][C:7]=1[N:17]1[CH2:18][CH2:19][CH2:20][N:14]([C:21]([O:23][C:24]([CH3:27])([CH3:26])[CH3:25])=[O:22])[CH2:15][CH2:16]1

Participants

6

Reactant 4

HCID 962WaterHCID 11430Potassium CarbonateHCID 2756058Tert-butyl 1,4-diazepane-1-carboxylateHCID 184681411-Fluoro-5-methoxy-2-methyl-4-nitrobenzene

Product 1

HCID 594527471,1-dimethylethyl 4-[2-methyl-5-(methyloxy)-4-nitrophenyl]hexahydro-1H-1,4-diazepine-1-carboxylateYield 22.7%

Reagents, catalysts & solvents 1

HCID 679Dimethyl SulfoxideSolvent

Conditions

Temperature
130 °C

Procedure

To 1-fluoro-2-methyl-5-(methyloxy)-4-nitrobenzene (1.6 g, 8.64 mmol) (Example 113, Step B) in 25 mL of DMSO was added, 1,1-dimethylethyl hexahydro-1H-1,4-diazepine-1-carboxylate (2.6 g, 13 mmol), and K2CO3 (3.6 g, 26 mmol). The mixture was heated to 130° C. for 24 h. The mixture was then poured into 400 mL of H2O and extracted with EtOAc. The product was isolated by flash chromatography to give the title compound of step A (0.7 g, 1.96 mmol, 22%). 1H NMR (400 MHz, DMSO-d6) δ 7.73 (s, 1H), 6.66 (d, J=4.58 Hz, 1H), 3.87 (s, 3H), 3.40-3.52 (m, 4H), 3.33 (d, J=9.34 Hz, 2H), 3.24 (d, J=4.58 Hz, 2H), 2.19 (s, 3H), 1.80-1.90 (m, 2H), 1.36 (s, 5H), 1.30 (s, 4H).

Workup

  1. extractionextracted with EtOAc
  2. customThe product was isolated by flash chromatography

Sources & evidence

ORD record
ord-f0f1f3115a2b4f1dbe2d316e2984c84f
Source dataset
uspto-grants-2012_01
Patent number
US08093239B2

Reaction notes

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