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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 967717Generated: November 1, 2026

Pyridine → HCID 178487535, compound

https://huagongshe.com/reaction/967717

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridineHCID 1049—
ReactantPhosphorus oxychlorideHCID 24813—
ReactantHCID 178487770HCID 178487770—
ProductHCID 178487535HCID 17848753537.7%

Reaction Conditions

Temperature70 °C

Reaction Steps

To a solution of the product from Step B (1 g, 6.1 mmol) in pyridine (0.5 mL, 6.1 mmol) was added phosphorous oxychloride (0.9 mL, 9.2 mmol) and the mixture heated at 130–140° C. for 5 h. The reaction mixture was cooled to 70° C. and poured onto ice (100 g). After standing for 24 h, the solid was collected and dried to give a cream-colored solid (0.42 g): ES/LCMS m/z 181 (M−H)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06956036B1
Source datasetuspto-grants-2005_10
ORD IDord-38ae7e769c0d4295ad742b65657005de
Source noteuspto-grants-2005_10