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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1931808Generated: November 2, 2026

Formaldehyde → HCID 25143668, compound

https://huagongshe.com/reaction/1931808

Reaction equation

Participants

RoleNameHCIDCharge
ReactantFormaldehydeHCID 712—
ReactantOxalic AcidHCID 971—
ReactantHCID 63585886HCID 63585886—
SolventFormic AcidHCID 284—
ProductHCID 25143668HCID 25143668—

Reaction Steps

Preparation according to Example 11: 3-(3,5-difluorophenyl)pyrrolidin-3-ol (0.125 g, 0.628 mmol), formic acid (1.82 mL), aqueous formaldehyde (40%, 1.63 mL). 65° C.; over night. The amine was converted to the oxalic acid salt and recrystallized from methanol/diethyl ether (0.126 g). M.p. 159-162° C.; MS m/z (relative intensity, 70 eV) 213 (M+, 27), 141 (13), 113 (15), 58 (32), 57 (bp).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08188301B2
Source datasetuspto-grants-2012_05
ORD IDord-079798f96dac427e89c32eb7a4994799
Source noteuspto-grants-2012_05