4-Chlorophenyl Isocyanate → HCID 46843368, compound

HRID 533746Notes

Reaction equation

HRID 533746 reaction equation
[Cl:1][C:2]1[CH:14]=[N:13][C:5]2[NH:6][C:7]3[CH2:12][CH2:11][NH:10][CH2:9][C:8]=3[C:4]=2[CH:3]=1.CCN(C(C)C)C(C)C.[Cl:24][C:25]1[CH:30]=[CH:29][C:28]([N:31]=[C:32]=[O:33])=[CH:27][CH:26]=1.Cl.CCOCC>C(Cl)Cl.CCOCC>[ClH:1].[Cl:24][C:25]1[CH:30]=[CH:29][C:28]([NH:31][C:32]([N:10]2[CH2:11][CH2:12][C:7]3[NH:6][C:5]4[N:13]=[CH:14][C:2]([Cl:1])=[CH:3][C:4]=4[C:8]=3[CH2:9]2)=[O:33])=[CH:27][CH:26]=1

Participants

7

Reactant 4

HCID 76934-Chlorophenyl IsocyanateHCID 81531DiisopropylethylamineHCID 10953452Ether hydrochlorideHCID 66677239HCID 66677239, compound

Product 1

HCID 46843368HCID 46843368, compoundYield 113.2%

Reagents, catalysts & solvents 2

HCID 3283Diethyl EtherSolventHCID 6344DichloromethaneSolvent

Procedure

3-Chloro-6,7,8,9-tetrahydro-5H-dipyrido[2,3-b;3′,4′-d]pyrrole (50 mg, 0.24 mmol), and DIEA (0.04 mL, 0.24 mmol) were dissolved in DCM (2 mL). 4-Chlorophenyl isocyanate (0.03 mL, 0.26 mmol) was added dropwise, and the reaction solution was stirred overnight at room temperature. The crude reaction mixture was concentrated, and converted to the HCl salt by dissolving the crude material in MeOH (2 ml) and adding 1 M HCl/ether (2 equiv). The resulting solution was refrigerated overnight. Additional ether was added to drive precipitate formation. The resulting precipitate was filtered and dried under vacuum to provide 29 (54 mg, 57% yield) as a yellow solid. LC-MS (M+H=362, obsd.=362).

Workup

  1. customThe crude reaction mixture
  2. concentrationwas concentrated
  3. dissolutionby dissolving the crude material in MeOH (2 ml)
  4. waitThe resulting solution was refrigerated overnight
  5. filtrationThe resulting precipitate was filtered
  6. customdried under vacuum

Sources & evidence

ORD record
ord-32d987924062450ca2d1ea97aa19bbfa
Source dataset
uspto-grants-2014_10
Patent number
US08853391B2

Reaction notes

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