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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1762909Generated: October 30, 2026

Diethyl Ether → HCID 14500421, compound

https://huagongshe.com/reaction/1762909

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiethyl EtherHCID 3283—
ReactantFumaric AcidHCID 444972—
ReactantHCID 14500442HCID 14500442—
CatalystPlatinum oxide (PtO)HCID 82844—
SolventMethanolHCID 887—
ProductHCID 14500421HCID 1450042152.9%

Reaction Steps

A solution of α-[(2,4-dimethylphenoxy)methyl]pyridine-2-methanol hydrochloride (10.0 g, 0.0347 mole) in 200 ml of methanol was hydrogenated at room temperature with 1.4 g of platinum oxide for 1/2 hr. The methanol solution was filtered and solvent removed on the rotary evaporator. The resulting material was dissolved in water, made basic with 10% sodium hydroxide and the free base was extracted into methylene chloride. Removal of methylene chloride on the rotary evaporator gave a yellow oil. While standing overnight the oil crystallized to give a white solid (softens 75°-78° C., 78°-90° C. m.p.). The free base was dissolved in methanol and treated with a methanol solution of an equimolar quantity of fumaric acid. A crystalline white solid was obtained by adding ether, and upon recrystallization from methanol-ethyl ether, 5.81 g (52.9%) of crystalline white product was obtained, m.p. 208°-212° C. with decomposition.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04835164
Source datasetuspto-grants-1989_05
ORD IDord-4aaa797ff6134008a48b3ac299e0b548
Source noteuspto-grants-1989_05