Triethylamine → HCID 57971668, compound

HRID 2360639Notes

Reaction equation

HRID 2360639 reaction equation
[C:1]([O:12][CH3:13])(=[O:11])[CH2:2][CH2:3][CH2:4][CH2:5][CH2:6][CH2:7][C:8]([O-:10])=O.CCN=C=NCCCN(C)C.Cl.C1C=CC2N(O)N=NC=2C=1.C(N(CC)CC)C.[CH2:43]([O:47][CH:48]([O:50][NH2:51])[CH3:49])[CH:44]([CH3:46])[CH3:45]>C1COCC1.C(Cl)Cl>[CH3:13][O:12][C:1](=[O:11])[CH2:2][CH2:3][CH2:4][CH2:5][CH2:6][CH2:7][C:8](=[O:10])[NH:51][O:50][CH:48]([O:47][CH2:43][CH:44]([CH3:46])[CH3:45])[CH3:49]

Participants

8

Reactant 5

HCID 8471TriethylamineHCID 757711-HydroxybenzotriazoleHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 7014868HCID 7014868, compoundHCID 9877377HCID 9877377, compound

Product 1

HCID 57971668HCID 57971668, compoundYield 907%

Reagents, catalysts & solvents 2

HCID 6344DichloromethaneSolventHCID 8028TetrahydrofuranSolvent

Procedure

Monomethyl suberate (25.0 g, 13.3 mmol, 1.0 eq) was dissolved in THF (300 mL) and DCM (300 mL). EDC.HCl (25.46 g, 13.3 mmol, 1.0 eq) was added to the stirred solution, followed by HOBt (17.95 g, 13.3 mmol, 1.0 eq) and triethylamine (48.5 mL, 34.5 mmol, 2.6 eq). O-(1-Isobutoxy-ethyl)hydroxylamine (21.9 mL, 15.9 mmol, 1.2 eq) was added to the viscous solution and the reaction allowed to stir overnight at room temperature. The reaction mixture was concentrated under vacuum, DCM (350 mL) was added and washed with water (250 mL) and brine (200 mL). The organic layer was isolated, dried (MgSO4), filtered and concentrated in vacuo. The product was obtained as a white solid (36.6 g, 91% yield) LCMS purity 88%, m/z 302 (M++H)+. This was used in the next step without further purification.

Workup

  1. concentrationThe reaction mixture was concentrated under vacuum, DCM (350 mL)
  2. additionwas added
  3. washwashed with water (250 mL) and brine (200 mL)
  4. customThe organic layer was isolated
  5. dry with materialdried (MgSO4)
  6. filtrationfiltered
  7. concentrationconcentrated in vacuo

Sources & evidence

ORD record
ord-f8fbab51b0e94b94a2000d9a033e727a
Source dataset
uspto-grants-2014_04
Patent number
US08686032B2

Reaction notes

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