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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 915163Generated: November 3, 2026

Trifluoroacetic acid → 1-(2-Pyrimidinyl)piperazine

https://huagongshe.com/reaction/915163

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrifluoroacetic acidHCID 6422—
Reactant2-(4-nitrophenoxycarbonyl)amino-5-phenylthiazoleHCID 11382253—
ReactantHCID 86594443HCID 86594443—
Product1-(2-Pyrimidinyl)piperazineHCID 88747—

Reaction Steps

In a manner identical to that described above in Scheme 2, from 100 mg (0.29 mmol) of 2-(4-nitrophenoxycarbonyl)amino-5-phenylthiazole and 48 mg (0.29 mmol) of 4-(2-pyrimidinyl)piperazine was obtained the bis TFA salt of 3 as a fluffy white amorphous solid after lyophilization. H1 NMR (DMSO-d6): 3.61 (m, 4H), 3.72 (m, 4H), 6.70 (m, 1H), 7.45 (complex, 6H), 7.80 (s, 1H), 8.20 (m, 2H). High Res. FAB MS: Theo. Mass=367.1336; measured mass=267.1337.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07265134B2
Source datasetuspto-grants-2007_09
ORD IDord-e2ba119496c349e9ac9259403dab9999
Source noteuspto-grants-2007_09