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Dimethylformamide → N(2,6-dichlorobenzoyl)-4-(2,6-dimethoxyphenyl)-L-phenylalanyl chloride

HRID 24680
Notes
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Reaction equation

HRID 24680 reaction equation
[Cl:1][C:2]1[CH:31]=[CH:30][CH:29]=[C:28]([Cl:32])[C:3]=1[C:4]([NH:6][C@H:7]([C:25]([OH:27])=O)[CH2:8][C:9]1[CH:14]=[CH:13][C:12]([C:15]2[C:20]([O:21][CH3:22])=[CH:19][CH:18]=[CH:17][C:16]=2[O:23][CH3:24])=[CH:11][CH:10]=1)=[O:5].C(Cl)(=O)C([Cl:36])=O.CN(C=O)C>C1COCC1>[Cl:1][C:2]1[CH:31]=[CH:30][CH:29]=[C:28]([Cl:32])[C:3]=1[C:4]([NH:6][C@H:7]([C:25]([Cl:36])=[O:27])[CH2:8][C:9]1[CH:14]=[CH:13][C:12]([C:15]2[C:20]([O:21][CH3:22])=[CH:19][CH:18]=[CH:17][C:16]=2[O:23][CH3:24])=[CH:11][CH:10]=1)=[O:5]
ParticipantsConditionsProcedureWorkupSources & evidenceReaction notes

Participants

5

Reactant 3

HCID 6228DimethylformamideHCID 65578Oxalyl chlorideHCID 9912743(S)-2-(2,6-Dichlorobenzamido)-3-(2',6'-dimethoxy-[1,1'-biphenyl]-4-yl)propanoic acid

Product 1

HCID 54238962N(2,6-dichlorobenzoyl)-4-(2,6-dimethoxyphenyl)-L-phenylalanyl chloride

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Conditions

Temperature
0 °C

Procedure

To a solution of N-(2,6-dichlorobenzoyl)-4-(2,6-dimethoxyphenyl)-L-phenylalanine (0.1 g) in THF (5 mL) at 0° C. under N2 was added oxalyl chloride (0.055 mL) followed by a drop of DMF. The solution was stirred at 0° C. for 2 h followed by stirring at room temperature for 2 h. THF was evaporated and fresh THF (5 mL) was added and the solution was evaporated again. This process was repeated one more time and the residue was dried under vacuum to yield N-(2,6-dichlorobenzoyl)-4-(2,6-dimethoxyphenyl)-L-phenylalanyl chloride.

Workup

  1. stirringby stirring at room temperature for 2 h
  2. customTHF was evaporated
  3. additionfresh THF (5 mL) was added
  4. customthe solution was evaporated again
  5. customthe residue was dried under vacuum

Sources & evidence

ORD record
ord-ce27f04eb10b4ae48baafe154c63f1b2
Source dataset
uspto-grants-2005_02
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US06855843B2

Reaction notes

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On this pageParticipantsConditionsProcedureWorkupSources & evidenceReaction notes