Triethylamine → HCID 67080471, compound

HRID 1048076Notes

Reaction equation

HRID 1048076 reaction equation
[Cl:1][C:2]1[CH:3]=[C:4]2[C:9](=[CH:10][C:11]=1[O:12][C:13]1[CH:21]=[CH:20][C:16]([C:17](O)=[O:18])=[CH:15][CH:14]=1)[O:8][CH2:7][CH2:6][CH:5]2[C:22]([O:24][CH2:25][CH3:26])=[O:23].C(Cl)(=O)C(Cl)=O.[Br:33][C:34]1[CH:35]=[C:36]([CH:38]=[CH:39][C:40]=1[F:41])[NH2:37].C(N(CC)CC)C>ClCCCl.ClCCl.CN(C=O)C>[Br:33][C:34]1[CH:35]=[C:36]([NH:37][C:17]([C:16]2[CH:20]=[CH:21][C:13]([O:12][C:11]3[CH:10]=[C:9]4[C:4]([CH:5]([C:22]([O:24][CH2:25][CH3:26])=[O:23])[CH2:6][CH2:7][O:8]4)=[CH:3][C:2]=3[Cl:1])=[CH:14][CH:15]=2)=[O:18])[CH:38]=[CH:39][C:40]=1[F:41]

Participants

8

Reactant 4

HCID 8471TriethylamineHCID 65578Oxalyl chlorideHCID 27792863-Bromo-4-fluoroanilineHCID 582443954-(6-Chloro-4-(ethoxycarbonyl)chroman-7-yloxy)benzoic acid

Product 1

HCID 67080471HCID 67080471, compoundYield 85.1%

Reagents, catalysts & solvents 3

HCID 111,2-DichloroethaneSolventHCID 6228DimethylformamideSolventHCID 6344DichloromethaneSolvent

Procedure

4-(6-Chloro-4-(ethoxycarbonyl)chroman-7-yloxy)benzoic acid (Preparation 1) (0.214 g, 0.569 mmol) was dissolved in 1,2-dichloroethane (2 ml) and a drop of DMF was added. To the mixture was added oxalyl chloride (2M in dichloromethane) (0.313 ml, 0.626 mmol). Gas evolution was observed. The mixture was stirred for 2 hours at ambient temperature. A solution of 3-bromo-4-fluoroaniline (0.113 g, 0.597 mmol) and triethylamine (0.158 ml, 1.138 mmol) in dichloromethane (1 ml) was added to the acid chloride solution. The mixture was stirred for 0.5 hour and the crude mixture was purified on silica gel (EtOAc in hexanes gradient) to provide 0.2656 g of the title compound as a white solid (85%).

Workup

  1. stirringThe mixture was stirred for 0.5 hour
  2. customthe crude mixture was purified on silica gel (EtOAc in hexanes gradient)

Sources & evidence

ORD record
ord-2925c365048f468e910cfca9f8ea3623
Source dataset
uspto-grants-2013_10
Patent number
US08569522B2

Reaction notes

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