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Aniline → Methyl 3-anilino-5-bromobenzoate

HRID 524
Notes
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Reaction equation

HRID 524 reaction equation
COC(=O)c1cc(Br)cc(I)c1.Nc1ccccc1>CC(=O)O.CC(=O)O.Cc1ccccc1.O=C([O-])[O-].[Cs+].[Cs+].[Pd].c1ccc(P(c2ccccc2)c2ccc3ccccc3c2-c2c(P(c3ccccc3)c3ccccc3)ccc3ccccc23)cc1>COC(=O)c1cc(Br)cc(Nc2ccccc2)c1
ParticipantsConditionsProcedureSources & evidenceReaction notes

Participants

7

Reactant 2

HCID 6115AnilineHCID 21942573Methyl 3-bromo-5-iodobenzoate

Product 1

HCID 57529296Methyl 3-anilino-5-bromobenzoateYield 40.51%

Reagents, catalysts & solvents 4

HCID 10796Cesium carbonateReagentHCID 634876Binap, (A+-)-Catalyst
HCID 4144353
Palladium (II) acetate
Catalyst
HCID 1140TolueneSolvent

Conditions

Temperature
110 °C

Procedure

diacetoxypalladium (0.314 g, 1.40 mmol) and 2,2'-bis(diphenylphosphino)-1,1'-binaphthyl (0.871 g, 1.40 mmol) were added to a degassed mixture of methyl 3-bromo-5-iodobenzoate (4.77 g, 13.99 mmol), aniline (2.55 ml, 13.99 mmol) and cesium carbonate (3.87 g, 11.89 mmol) in toluene (137 ml) under nitrogen. The resulting mixture was stirred at 110 °C for 18 hours. The resulting mixture was evaporated to dryness and the residue was diluted with EtOAc (150 mL), and washed with water (100 mL), the organic layer was dried over MgSO4, filtered and evaporated to afford crude product. The crude product was purified by flash silica chromatography, elution gradient 0 to 15% EtOAc in heptane. Pure fractions were evaporated to dryness to afford methyl 3-bromo-5-(phenylamino)benzoate (1.735 g, 40.5 %) as a pale yellow solid.

Sources & evidence

ORD record
ord-6368febfb34940ba908b28066b8fb22a
Source dataset
750 AstraZeneca ELN dataset
Original link
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Reaction notes

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On this pageParticipantsConditionsProcedureSources & evidenceReaction notes