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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 225522Generated: October 26, 2026

Trifluoroacetic acid → 3-Bromo-6,7-dihydro-5H-pyrrolo[3,4-b]pyridine

https://huagongshe.com/reaction/225522

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrifluoroacetic acidHCID 6422—
Reactant3-Bromo-6-trityl-6,7-dihydro-5H-pyrrolo[3,4-b]pyridineHCID 57753674—
SolventMethanolHCID 887—
SolventChloroformHCID 6212—
Product3-Bromo-6,7-dihydro-5H-pyrrolo[3,4-b]pyridineHCID 57753562—

Reaction Conditions

Temperature0 °C

Reaction Steps

To a 0° C. solution of 0.18 mmol 3-bromo-6-trityl-6,7-dihydro-5H-pyrrolo[3,4-b]pyridine in 0.5 ml chloroform and 0.5 ml methanol was added dropwise 1 ml trifluoroacetic acid. After 5 minutes stirring at 0° C. and 30 minutes at RT, the reaction mixture was concentrated. The residue was taken in water/ether and 1 ml 1N HCl was added. The aqueous phase was extracted with ether (2 times), then basified with 5N NaOH and extracted with dichloromethane (3 times). Combined organic phases were dried over sodium sulfate, filtered and concentrated in vacuo to yield the title compound as a light yellow solid. MS (m/e): 199.0 (M+, 100%)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07557114B2
Source datasetuspto-grants-2009_07
ORD IDord-3574d0785edb49f4aac64347c1e7687b
Source noteuspto-grants-2009_07