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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1926183Generated: November 1, 2026

Hydrochloric Acid → 2-(2-(9H-fluoren-9-ylidene)acetamido)acetic acid

https://huagongshe.com/reaction/1926183

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantMethanolHCID 887—
ReactantLithium HydroxideHCID 3939—
Reactant2-(2-(9H-fluoren-9-ylidene)acetamido)acetic acid methyl esterHCID 57972057—
SolventWaterHCID 962—
Product2-(2-(9H-fluoren-9-ylidene)acetamido)acetic acidHCID 5797206293%

Reaction Steps

2-(2-(9H-fluoren-9-ylidene)acetamido)acetic acid methyl ester (293 mg, 1 mmol) and 300 ml of CH3OH were stirred at room temperature while 25 ml of 4 N solution of LiOH in H2O was added. The mixture was stirred for 5 hours at room temperature. The mixture is neutralized with concentrated hydrochloric acid to pH 7 and evaporated under vacuum to remove methanol. The residue was adjusted to pH 3 with concentrated hydrochloric acid. The solids were collected by vacuum filtration, washed with water and dried under vacuum to give the title compound (259 mg, 93% yield) as a white solid. LC-MS (m/z) 280 (M+1).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08178577B2
Source datasetuspto-grants-2012_05
ORD IDord-6f73e1f539d24033953e20da6c00c701
Source noteuspto-grants-2012_05