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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1968266Generated: October 30, 2026

Trifluoroacetic acid methylene chloride → Trifluoroacetic acid

https://huagongshe.com/reaction/1968266

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrifluoroacetic acid methylene chlorideHCID 21863450—
ReactantTert-butyl 3,3-difluorocyclopentylcarbamateHCID 58293502—
ProductTrifluoroacetic acidHCID 642299%
ProductHCID 53302322HCID 53302322—

Reaction Conditions

Temperature25 °C

Reaction Steps

A mixture of tert-butyl 3,3-difluorocyclopentylcarbamate and DCM/TFA (50%, 7 mL) was stirred at 25° C. for 30 min. The reaction mixture was concentrated down and dried in vacuo to afford the title compound as an orange semi-solid, TFA salt (0.51 g, 99%). 1H NMR (400 MHz, DMSO-d6) δ 1.69-1.88 (m, 1 H) 2.00-2.22 (m, 3 H) 2.22-2.38 (m, 1 H) 2.56 (d, J=6.32 Hz, 1 H) 3.71 (d, J=5.31 Hz, 1 H) 8.20 (br. s., 3 H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08420816B2
Source datasetuspto-grants-2013_04
ORD IDord-be93e468708949c0b47b54e51d361255
Source noteuspto-grants-2013_04