Triethylamine → HCID 67582976, compound

HRID 1416489Notes

Reaction equation

HRID 1416489 reaction equation
[CH2:1]([O:5][C:6]1[C:15]2[C:10](=[CH:11][CH:12]=[CH:13][CH:14]=2)[N:9]=[C:8]([N:16]2[CH2:21][CH2:20][NH:19][CH2:18][CH2:17]2)[N:7]=1)/[CH:2]=[CH:3]/[CH3:4].C(N(CC)CC)C.[C:29](Cl)(=[O:38])[O:30][CH2:31][C:32]1[CH:37]=[CH:36][CH:35]=[CH:34][CH:33]=1>C(Cl)Cl.C(Cl)(Cl)Cl>[CH2:31]([O:30][C:29]([N:19]1[CH2:20][CH2:21][N:16]([C:8]2[N:7]=[C:6]([O:5][CH2:1]/[CH:2]=[CH:3]/[CH3:4])[C:15]3[C:10](=[CH:11][CH:12]=[CH:13][CH:14]=3)[N:9]=2)[CH2:17][CH2:18]1)=[O:38])[C:32]1[CH:37]=[CH:36][CH:35]=[CH:34][CH:33]=1

Participants

6

Reactant 3

HCID 8471TriethylamineHCID 10387Benzyl chloroformateHCID 67582001HCID 67582001, compound

Product 1

HCID 67582976HCID 67582976, compound

Reagents, catalysts & solvents 2

HCID 6212ChloroformSolventHCID 6344DichloromethaneSolvent2×

Procedure

To a solution of 4-[trans-(2-buten-1-yl)oxy]-2-(1-piperazinyl) quinazoline (1.20 g) in dry methylene chloride (12 ml) is added triethylamine (1.77 ml) with stirring under ice-cooling, and thereto is further added dropwise a solution of benzyl chlorocarbonate (0.73 ml) in dry methylene chloride (5 ml). The mixture is stirred under ice-cooling for 3 hours. The reaction mixture is diluted with chloroform, washed with water, and dried over anhydrous magnesium sulfate. The solution is evaporated to dryness under reduced pressure, and the residue is purified by medium pressure liquid column chromatography (elutant, chloroform) to give 2-[4-(benzyloxycarbonyl)piperazin-1-yl]-4-[trans-(2-buten-1-yl)oxy]quinazoline (1.57 g) as crystals.

Workup

  1. temperaturecooling
  2. stirringThe mixture is stirred under ice-
  3. temperaturecooling for 3 hours
  4. washwashed with water
  5. dry with materialdried over anhydrous magnesium sulfate
  6. customThe solution is evaporated to dryness under reduced pressure
  7. customthe residue is purified by medium pressure liquid column chromatography (elutant, chloroform)

Sources & evidence

ORD record
ord-b65bdff6da5e487d859ecf4fbd1bbdc7
Source dataset
uspto-grants-1999_06
Patent number
US05912247

Reaction notes

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