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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2086039Generated: October 29, 2026

Chloroform → 7-Methyl-5-nitro-1H-indole

https://huagongshe.com/reaction/2086039

Reaction equation

Participants

RoleNameHCIDCharge
ReactantChloroformHCID 6212—
ReactantTetramethyltinHCID 11661—
Reactant7-Bromo-5-nitroindolineHCID 323490—
CatalystHCID 178418476HCID 178418476—
SolventDimethylformamideHCID 6228—
Product7-Methyl-5-nitro-1H-indoleHCID 1545346674.1%

Reaction Conditions

Temperature140 °C

Reaction Steps

To a solution of 7-bromo-5-nitroindoline (0.65 g, 2.7 mmol) in 10 mL of DMF were added tetramethyltin (1.0 mL, 7.3 mmol) and bis(triphenylphosphine)palladium(II) chloride (0.10 g) in a portion and resulting mixture was stirred in sealed tube for 12 h at 140° C. The reaction mixture was concentrated in vacuo, providing a dark oily residue which was subjected to column chromatography (CHCl3, neat) to yield 0.35 g (2.0 mmol, 74%) of the desired product.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06723741B2
Source datasetuspto-grants-2004_04
ORD IDord-877b727d19434db8970ed91901834ad6
Source noteuspto-grants-2004_04