Methanamine, N-methoxy-, hydrochloride (1:1) → HCID 178502717, compound

HRID 1852808Notes

Reaction equation

HRID 1852808 reaction equation
[CH3:1][C@H:2]1[CH2:7][CH2:6][C@H:5]([C:8]([OH:10])=O)[CH2:4][CH2:3]1.CN([C:14]([O:18][N:19]1N=NC2C=CC=N[C:20]1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.CCN(C(C)C)C(C)C.Cl.CNOC>CN(C=O)C.O>[CH3:14][O:18][N:19]([CH3:20])[C:8]([C@H:5]1[CH2:6][CH2:7][C@H:2]([CH3:1])[CH2:3][CH2:4]1)=[O:10]

Participants

7

Reactant 4

HCID 81138Methanamine, N-methoxy-, hydrochloride (1:1)HCID 81531DiisopropylethylamineHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 178461286HCID 178461286, compound

Product 1

HCID 178502717HCID 178502717, compound

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 6228DimethylformamideSolvent

Procedure

To a solution of trans-4-methylcyclohexanecarboxylic acid (100 g, 0.70 mol) in DMF (1.2 L) were added HATU (294 g, 0.77 mol) and DIPEA (273 g, 2.1 mol) at room temperature. After stirring for 0.5 h, TLC showed no starting material left (petroleum ether/ethyl acetate=5:1). Then N,O-dimethylhydroxylamine hydrochloride (75.5 g, 0.77 mol) was added slowly. The mixture was stirred at room temperature for 3 h. TLC (petroleum ether/ethyl acetate=5:1) showed the reaction was complete. The reaction was diluted with water and extracted with ethyl acetate. The organic layer was washed with water twice, washed with brine, dried over Na2SO4 and concentrated to give crude trans-N-methoxy-N,4-dimethylcyclohexanecarboxamide, which was used for the next step without further purification.

Workup

  1. stirringThe mixture was stirred at room temperature for 3 h
  2. extractionextracted with ethyl acetate
  3. washThe organic layer was washed with water twice
  4. washwashed with brine
  5. dry with materialdried over Na2SO4
  6. concentrationconcentrated

Sources & evidence

ORD record
ord-9180d184de0447b6a1e7b11ee5c1b7f2
Source dataset
uspto-grants-2015_02
Patent number
US08962611B2

Reaction notes

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