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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1987947Generated: October 31, 2026

Sodium Hydroxide → Trifluoroacetic acid

https://huagongshe.com/reaction/1987947

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium HydroxideHCID 14798—
Reactant9-[8-(2,2,2-Trifluoro-acetyl)-8-aza-bicyclo[3.2.1]oct-3-ylidene]-9H-xanthene-3-carbonitrileHCID 57725339—
ReactantAcetic hydrazide benzenesulfonic acidHCID 86636508—
SolventMethanolHCID 887—
ProductTrifluoroacetic acidHCID 6422—
ProductHCID 178433930HCID 178433930—

Reaction Steps

A mixture of compounds 11a (0.029 g, 0.125 mmol) and 5e (0.051g, 0.124 mmol) was exposed to microwave irradition (300 W) at 200° C. for 10 min. After cooling, MeOH (1 mL) and 1N NaOH (1 mL) were added to the reaction mixture and the mixture was stirred at rt for 30 min. The crude product was purified by reverse phase HPLC to yield compound 35 as a TFA salt. MS m/z (MH+) 371.0; 1H NMR (CH3OH-d4) δ 1.40 (d, 2H), 1.85 (m, 2H), 1.41 (s, 3H), 3.02 (m, 4H), 3.91 (m, 2H), 7.19 (m, 4H), 7.33 (d, 2H), 7.84 (d, 1H), 7.85 (s, 1H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07553850B2
Source datasetuspto-grants-2009_06
ORD IDord-5844e01bb1154569be53d9dc0c6ea90d
Source noteuspto-grants-2009_06