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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2214518Generated: October 30, 2026

Formaldehyde → HCID 54698197, compound

https://huagongshe.com/reaction/2214518

Reaction equation

Participants

RoleNameHCIDCharge
ReactantFormaldehydeHCID 712—
ReactantBenzenemethanamine, 3,4-dichloro-HCID 1608—
ReactantN-[(3,4-dichlorophenyl)methyl]-4-hydroxy-N,1-dimethyl-5-oxo-2H-pyrrole-3-carboxamideHCID 54697551—
ReactantHCID 69655739HCID 69655739—
ProductHCID 54698197HCID 54698197—

Reaction Steps

3-[(3,4-Dichloro-benzyl-methyl-carbamoyl]-2-hydroxy-acrylic acid methyl ester (Compound 12-B) was treated with paraformaldehyde and 3,4 dichloro-benzylamine as described in the preparation of Compound 12. The title compound was isolated as a white foam (155 mg, 66% yield). 1H NMR (500 MHz, CDCl3) δ: 10.70 (bs, 1H), 7.42 (d, 1H, J=3.05), 7.40 (d, 1H, J=3.05), 7.34 (d, 2H, J=1.83), 7.09 (dd, 2H, J=8.24, J=1.83), 4.62 (s, 2H), 4.57 (s, 2H), 4.06 (s, 2H), 3.00 (s, 3H). HRMS (M−H) calcd for C20H15N2Cl4O3: 470.9836. found: 470.9832.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07109186B2
Source datasetuspto-grants-2006_09
ORD IDord-86a985ed1169499da4ad2a9eff0db728
Source noteuspto-grants-2006_09