Benzoyl Peroxide → Methyl 2-(bromo-methyl)-4-chloro-1-methyl-1H-indole-3-carboxylate

HRID 453855Notes

Reaction equation

[Cl:1][C:2]1[CH:10]=[CH:9][CH:8]=[C:7]2[C:3]=1[C:4]([C:13]([O:15][CH3:16])=[O:14])=[C:5]([CH3:12])[N:6]2[CH3:11].C1C(=O)N([Br:24])C(=O)C1.C(OOC(=O)C1C=CC=CC=1)(=O)C1C=CC=CC=1>C(Cl)(Cl)(Cl)Cl>[Br:24][CH2:12][C:5]1[N:6]([CH3:11])[C:7]2[C:3]([C:4]=1[C:13]([O:15][CH3:16])=[O:14])=[C:2]([Cl:1])[CH:10]=[CH:9][CH:8]=2

Participants

Conditions

Temperature: 85 °C

Procedure

Methyl 4-chloro-1,2-dimethyl-1H-indole-3-carboxylate (9.70 mmol, 1.0 equiv.) was dissolved in CCl4 (97 ml), and NBS (9.70 mmol, 1.0 equiv.) and benzoyl peroxide (0.19 mmol, 0.02 equiv.) were added. The mixture was heated for 1 h at 85° C. The resulting succinimide was filtered out, the filtrate was concentrated, and the residue was purified by column chromatography (20% ethyl acetate in hexane). Yield: 48%

Workup

filtrationThe resulting succinimide was filtered out
concentrationthe filtrate was concentrated
customthe residue was purified by column chromatography (20% ethyl acetate in hexane)

Sources & evidence

ORD record: ord-41a85795b6ca4f81ae7b4d6bfb8f6e9c
Source dataset: uspto-grants-2013_07
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08492559B2

Reaction notes

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