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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 710529Generated: October 31, 2026

Phosphorus oxychloride → HCID 178506155, compound

https://huagongshe.com/reaction/710529

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPhosphorus oxychlorideHCID 24813—
ReactantLawesson's reagentHCID 87949—
Reactant3-(4-(Trifluoromethyl)phenyl)propionic AcidHCID 3588736—
Reactant1H-benzimidazole-5-carbohydrazideHCID 16637119—
ProductHCID 178506155HCID 178506155—

Reaction Steps

The compound was synthesized starting from 3-(4-trifluoromethylphenyl)propionic acid (219 mg; 1 mmol), benzimidazol-5-carbohydrazide (176 mg; 1 mmol), Lawesson's reagent (606 mg; 1.5 mmol) and POCl3 (0.137 ml; 1.5 mmol) as described in method 3; yield: 0.017 g (4.5%); MS m/z: 375.1 [M+H]+; 1H-NMR (DMSO d6, 400 MHz): δ 3.22 (t, 2H, 3J=7.5 Hz); 3.52 (t, 2H, 3J=7.5 Hz); 7.53-7.55 (m, 2H); 7.65-7.67 (m, 2H); 7.84 (d, 1H, 3J=8.7 Hz); 7.92 (dd, 1H, 4J=1.7 Hz, 3J=8.7 Hz); 8.22-8.23 (m, 1H); 8.93 (s, 1H); HPLC (METHOD [A]): rt 14.82 min (98.3%)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09181233B2
Source datasetuspto-grants-2015_11
ORD IDord-cd70888ee9da44a59a078a0d613af905
Source noteuspto-grants-2015_11