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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1170048Generated: October 31, 2026

Potassium Hydroxide → HCID 178515968, compound

https://huagongshe.com/reaction/1170048

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium HydroxideHCID 14797—
ReactantPyridinium hydrochlorideHCID 21584435—
ReactantHCID 68525269HCID 68525269—
SolventWaterHCID 962—
ProductHCID 178515968HCID 178515968—

Reaction Conditions

Temperature190 °C

Reaction Steps

A mixture of 4.9 g (8.0 mmol) of tris(3-(6-methoxy-2-pyridyl)benzyl)methane and 7.4 g (64 mmol) of pyridinium hydrochloride was heated at 190° C. for 3 h. After cooling, the mixture was taken up in 200 ml of water and adjusted to pH=7.7 using 1N potassium hydroxide solution. The aqueous phase was extracted five times with 200 ml of dichloromethane. The organic phase was dried over magnesium sulfate and filtered through a short frit with silica gel. After removal of the solvent, the residue was recrystallised from tert-butyl methyl ether:n-heptane (1:2). The yield, with a purity of about 97%, was 3.8 g (6.7 mmol), corresponding to 83.8% of theory.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07825249B2
Source datasetuspto-grants-2010_11
ORD IDord-4d43dc563e4049a5ac812b6778103b8e
Source noteuspto-grants-2010_11