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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1901596Generated: October 29, 2026

3-Hydroxypyridine → HCID 23368445, compound

https://huagongshe.com/reaction/1901596

Reaction equation

Participants

RoleNameHCIDCharge
Reactant3-HydroxypyridineHCID 7971—
ReactantTriphenylphosphineHCID 11776—
Reactantethyl N-ethoxycarbonyliminocarbamateHCID 220568—
ReactantHCID 23368567HCID 23368567—
SolventTetrahydrofuranHCID 8028—
ProductHCID 23368445HCID 2336844551.3%

Reaction Steps

To a solution of 0.5 g of 3-(2-tert-butoxycarbonylamino-3-hydroxypropoxy)-1,2-benzoisoxazole in 5 ml of tetrahydrofuran are added 0.154 g of 3-hydroxypyridine, 0.553 g of triphenylphosphine and 0.33 ml of diethyl azodicarboxylate at room temperature with ice-cooling, and they are subjected to reaction at room temperature for eight hours. The solvent is removed from the reaction mixture by distillation under reduced pressure, and the residue obtained is purified by a silica gel column chromatography [eluant:n-hexane:ethyl acetate=4:1], to obtain 0.32 g of oily 3-[2-tert-butoxycarbonylamino-3-(3-pyridyloxy)propoxy]-1,2-benzoisoxazole.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05578627
Source datasetuspto-grants-1996_11
ORD IDord-77812c50be0b4823b1cfc229bc8e1770
Source noteuspto-grants-1996_11