Methyl chloroformate → HCID 69628944, compound

HRID 1792713Notes

Reaction equation

HRID 1792713 reaction equation
[F:1][C:2]1[CH:19]=[CH:18][C:5]2[C:6]([CH:9]3[CH2:14][CH2:13][N:12]([CH2:15][CH2:16][NH2:17])[CH2:11][CH2:10]3)=[N:7][O:8][C:4]=2[CH:3]=1.C(N(CC)CC)C.Cl[C:28]([O:30]C)=[O:29].[C:32]([OH:39])(=[O:38])/[CH:33]=[CH:34]/[C:35]([OH:37])=[O:36]>C(Cl)Cl.C(O)C>[C:32]([OH:39])(=[O:38])/[CH:33]=[CH:34]/[C:35]([OH:37])=[O:36].[F:1][C:2]1[CH:19]=[CH:18][C:5]2[C:6]([CH:9]3[CH2:14][CH2:13][N:12]([CH2:15][CH2:16][NH:17][C:28](=[O:29])[OH:30])[CH2:11][CH2:10]3)=[N:7][O:8][C:4]=2[CH:3]=1

Participants

7

Reactant 4

HCID 6586Methyl chloroformateHCID 8471TriethylamineHCID 444972Fumaric AcidHCID 146998572-(4-(6-Fluorobenzo[d]isoxazol-3-yl)piperidin-1-yl)ethan-1-amine

Product 1

HCID 69628944HCID 69628944, compound

Reagents, catalysts & solvents 2

HCID 702EthanolSolventHCID 6344DichloromethaneSolvent2×

Procedure

A mixture of 2-[4-(6-fluoro-1,2-benzisoxazol-3-yl)-1-piperidinyl]ethylamine (2.0 gm, 7.6 mmol) and triethylamine (1.0 gm, 10 mmol) in DCM (50 ml) was treated with methyl chloroformate (860 mg, 9.12 mmol) dropwise at room temperature. The mixture was stirred for 1 hr. The reaction mixture was diluted with DCM and washed with brine. The organic solution was dried over MgSO4 and concentrated to a crude oil. The purification was done by flash chromatography over a silica gel column (28 gm of Sorbsil C-30, eluted with DCM and MeOH/DCM). The pure oil thus obtained weighed 2.34 gm. It was converted to a fumarate salt by treatment with fumaric acid (840 mg, 1.0 eq) in ethanol. Crystallization was induced by adding drops of isopropyl ether, yield: 2.31 gm, m.p.=163°-165° C.

Workup

  1. washwashed with brine
  2. dry with materialThe organic solution was dried over MgSO4
  3. concentrationconcentrated to a crude oil
  4. customThe purification
  5. washwas done by flash chromatography over a silica gel column (28 gm of Sorbsil C-30, eluted with DCM and MeOH/DCM)
  6. customThe pure oil thus obtained
  7. customCrystallization
  8. additionby adding drops of isopropyl ether, yield: 2.31 gm, m.p.=163°-165° C.

Sources & evidence

ORD record
ord-e7e61fdfcdac4dda8221a474935e3d54
Source dataset
uspto-grants-2006_07
Patent number
USRE039198E1

Reaction notes

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