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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 710513Generated: October 25, 2026

Phosphorus oxychloride → HCID 178420858, compound

https://huagongshe.com/reaction/710513

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPhosphorus oxychlorideHCID 24813—
Reactant2,3-DimethoxyphenylpropionylchlorideHCID 11075178—
Reactant1H-benzimidazole-5-carbohydrazideHCID 16637119—
ProductHCID 178420858HCID 178420858—

Reaction Steps

The compound was synthesized starting from benzimidazol-5-carbohydrazide (176 mg, 1 mmol), TEA (0.153 ml; 1.1 mmol), 2,3-dimethoxyphenylpropionylchloride (228 mg, 1.1 mmol) and POCl3 (0.5 ml; 5.5 mmol) as described in method 1; yield: 0.016 mg (4.6%); MS m/z: 351.3 [M+H]+; 1H-NMR (DMSO d6, 400 MHz): δ 3.06-3.10 (m, 2H); 3.17-3.21 (m, 2H); 3.73 (s, 3H); 3.79 (s, 3H); 6.82-6.84 (m, 1H); 6.90-6.92 (m, 1H); 6.95-6.99 (m, 1H); 7.75-7.77 (m, 1H); 7.80-7.82 (m, 1H); 8.14 (br s, 1H); 8.41 (s, 1H); HPLC (METHOD [A]): rt 11.49 min (94.5%)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09181233B2
Source datasetuspto-grants-2015_11
ORD IDord-ee4000bb78084baea09d3e46c7444b9e
Source noteuspto-grants-2015_11