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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 522858Generated: November 3, 2026

Trifluoroacetic acid → HCID 18723226, compound

https://huagongshe.com/reaction/522858

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrifluoroacetic acidHCID 6422—
Reactanttert-Butyl 4-(4-(trifluoromethoxy)benzyloxy)piperidine-1-carboxylateHCID 18723402—
SolventDichloromethaneHCID 6344—
ProductHCID 18723226HCID 18723226—

Reaction Steps

tert-Butyl 4-(4-(trifluoromethoxy)benzyloxy)piperidine-1-carboxylate was dissolved in CH2Cl2 (40 mL) and TFA (4 mL) was added. The light yellow solution was stirred at RT for 20 h, after which time complete Boc deprotection was evident by LC-MS. The solution was concentrated under reduced pressure providing product as a TFA salt in 65-95% overall yield. The material was purified to obtain a salt or free based using catch and release with strong cation exchange chromatography (SCX-2) washing first with MeOH, then with 2M NH3 in MeOH.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09334269B2
Source datasetuspto-grants-2016_05
ORD IDord-1e3af4f069fd4273b1e7fe41a062ab83
Source noteuspto-grants-2016_05