4-Methylmorpholine → Methyl 3(6-Hexanamido-2,3-dihydrobenz-1,4-oxazin-4-ylmethyl)benzoate

HRID 1086570Notes

Reaction equation

HRID 1086570 reaction equation
[C:1](Cl)(=[O:7])[CH2:2][CH2:3][CH2:4][CH2:5][CH3:6].[NH2:9][C:10]1[CH:11]=[CH:12][C:13]2[O:18][CH2:17][CH2:16][N:15]([CH2:19][C:20]3[CH:21]=[C:22]([CH:27]=[CH:28][CH:29]=3)[C:23]([O:25][CH3:26])=[O:24])[C:14]=2[CH:30]=1.CN1CCOCC1>ClCCl>[C:1]([NH:9][C:10]1[CH:11]=[CH:12][C:13]2[O:18][CH2:17][CH2:16][N:15]([CH2:19][C:20]3[CH:21]=[C:22]([CH:27]=[CH:28][CH:29]=3)[C:23]([O:25][CH3:26])=[O:24])[C:14]=2[CH:30]=1)(=[O:7])[CH2:2][CH2:3][CH2:4][CH2:5][CH3:6]

Participants

5

Reactant 3

HCID 79724-MethylmorpholineHCID 67340Hexanoyl chlorideHCID 54048005Methyl 3-(6-amino-2,3-dihydrobenz-1,4-oxazin-4-ylmethyl)benzoate

Product 1

HCID 23365863Methyl 3(6-Hexanamido-2,3-dihydrobenz-1,4-oxazin-4-ylmethyl)benzoate

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent2×

Procedure

Hexanoyl chloride (0.135 g.) was added dropwise to a stirred solution of methyl 3-(6-amino-2,3-dihydrobenz-1,4-oxazin-4-ylmethyl)benzoate (X) (0.3 g.), and N-methylmorpholine (0.101 g.) in dichloromethane (30 ml.). After 0.5 hours, the mixture was diluted with dichloromethane, washed with water, dried (MgSO4) and evaporated to give an oil which was filtered through a short column of silica gel using 35:65 v/v ethyl acetate:hexane to give the title compound as a syrup: partial NMR (80 MHz, CDCl3): 0.8-1.9[complex m,9H, CH3 (CH2)3 ]; 2.2(m,2H, CH2CONH); 3.3(m,2H, N.CH2.CH2.O); 3.9(s,3H, OMe); 4.2(m,2H, N.CH2.CH2O); 4.5(s,2H, N.CH2Ar).

Workup

  1. washwashed with water
  2. dry with materialdried (MgSO4)
  3. customevaporated
  4. customto give an oil which
  5. filtrationwas filtered through a short column of silica gel using 35:65 v/v ethyl acetate

Sources & evidence

ORD record
ord-2154aaab0e6c46f1a331f794575fb10e
Source dataset
uspto-grants-1991_07
Patent number
US05030643

Reaction notes

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