Morpholine → HCID 18377044, compound

HRID 370083Notes

Reaction equation

HRID 370083 reaction equation
[Cl:1][C:2]1[CH:3]=[CH:4][C:5]([NH:8][C:9](=[O:21])[C:10]2[CH:15]=[C:14]([Cl:16])[CH:13]=[C:12](Cl)[C:11]=2[N+:18]([O-:20])=[O:19])=[N:6][CH:7]=1.[NH:22]1[CH2:27][CH2:26][O:25][CH2:24][CH2:23]1.C(N(CC)C(C)C)(C)C>CS(C)=O>[Cl:1][C:2]1[CH:3]=[CH:4][C:5]([NH:8][C:9](=[O:21])[C:10]2[CH:15]=[C:14]([Cl:16])[CH:13]=[C:12]([N:22]3[CH2:27][CH2:26][O:25][CH2:24][CH2:23]3)[C:11]=2[N+:18]([O-:20])=[O:19])=[N:6][CH:7]=1

Participants

5

Reactant 3

HCID 8083MorpholineHCID 81531DiisopropylethylamineHCID 18376742HCID 18376742, compound

Product 1

HCID 18377044HCID 18377044, compoundYield 46.6%

Reagents, catalysts & solvents 1

HCID 679Dimethyl SulfoxideSolvent

Conditions

Temperature
115 °C

Procedure

To a solution of N-(5-chloropyridin-2-yl)-2-nitro-3,5-dichlorobenzamide (12 g, 34 mmol) in DMSO (50 mL) was added morpholine (3.6 g, 41 mmol) followed by N,N-diisopropylethylamine (8.9 g, 69 mmol). The mixture was heated at 110-120° C. for 4 hours, then cooled to ambient temperature, quenched with water (50 mL) and extracted with ethyl acetate (3×100 mL). The combined organics were washed with brine (2×30 mL), dried over Na2SO4 and concentrated in vacuo. Purification by flash chromatography on silica gel afforded 6.3 g (46% yield) of N-(5-chloropyridin-2-yl)-2-nitro-3-(morpholin-4-yl)-5-chlorobenzamide; NMR (CDCl3) 8.2 (m, 1), 7.7 (m, 1), 7.2-7.4 (m, 3), 3.8 (m, 4), 3.0 (m, 4) ppm.

Workup

  1. temperaturecooled to ambient temperature
  2. customquenched with water (50 mL)
  3. extractionextracted with ethyl acetate (3×100 mL)
  4. washThe combined organics were washed with brine (2×30 mL)
  5. dry with materialdried over Na2SO4
  6. concentrationconcentrated in vacuo
  7. customPurification by flash chromatography on silica gel

Sources & evidence

ORD record
ord-07f80518e378460ebb4b6d83638e5ace
Source dataset
uspto-grants-2000_10
Patent number
US06140351

Reaction notes

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