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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1978034Generated: October 30, 2026

Pyridine → HCID 70229768, compound

https://huagongshe.com/reaction/1978034

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridineHCID 1049—
Reactant4-(Trifluoromethoxy)benzoyl ChlorideHCID 142110—
ReactantHCID 70229832HCID 70229832—
SolventWaterHCID 962—
SolventDichloromethaneHCID 6344—
ProductHCID 70229768HCID 7022976894.4%

Reaction Conditions

Temperature0 °C

Reaction Steps

A 0° C. solution of Example 126B (0.92 g, 3.0 mmol) in dichloromethane (10 mL) was sequentially treated with pyridine (0.3 mL, 3.7 mmol) and 4-trifluoromethoxybenzoyl chloride (0.53 mL, 3.4 mmol), stirred at 0° C. for 0.5 hours and then at room temperature for 1 hour. The reaction was diluted with water and extracted with dichloromethane (3×15 mL). The combined extracts were washed with saturated NaHCO3, dried, filtered, concentrated and purified on silica gel by flash column chromatography eluting with 6:1 hexanes/ethyl acetate to give 1.37 g of the desired product. MS (ESI): 501 (M+NH4+), 506 (M+Na+).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06235786B1
Source datasetuspto-grants-2001_05
ORD IDord-2a0258221fa945b88653195dda55bcfd
Source noteuspto-grants-2001_05