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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1967621Generated: October 29, 2026

Diazald → HCID 53380262, compound

https://huagongshe.com/reaction/1967621

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiazaldHCID 6628—
ReactantPotassium HydroxideHCID 14797—
ReactantHCID 21225595HCID 21225595—
ReactantHCID 131729952HCID 131729952—
SolventMethanolHCID 887—
ProductHCID 53380262HCID 53380262—

Reaction Steps

The compound was synthesized starting from KOH (15 eq in water), diazald (8 eq), ethylene glycol/Et2O (1/2 v/v, 60 ml), 1-(1H-Benzo[d]imidazol-6-yl)-3-hydroxy-4-methyl-5-(biphen-4-yl)-1H-pyrrol-2(5H)-one (1 g, 2.63 mmol, 1 eq) and MeOH (20 ml); yield 0.070 g (17.7%); MS m/z: 396.1 [M+H]+; 1H-NMR: (400 MHz, DMSO-D6) δ: 12.39 (s, 1H), 8.14 (s, 1H), 7.76-7.72 (m, 1H), 7.59-7.28 (m, 11H), 5.88 (s, 1H), 3.96 (s, 3H), 1.75 (s, 3H); HPLC (METHOD [A]): rt 14.00 min (98.38%)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08420828B2
Source datasetuspto-grants-2013_04
ORD IDord-f3c2491bd841418bad5d1ac68d47cfd3
Source noteuspto-grants-2013_04