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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2372728Generated: November 3, 2026

4-Hydroxybenzoic acid hydrazide → HCID 135797921, compound

https://huagongshe.com/reaction/2372728

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-Hydroxybenzoic acid hydrazideHCID 1742—
ReactantEthyl orthopropionateHCID 66995—
ProductHCID 135797921HCID 13579792196.7%

Reaction Steps

A mixture of 19 parts of 4-hydroxybenzoic acid hydrazide and 89.8 parts of 1,1,1-triethoxypropane was refluxed overnight. After cooling the precipitate was filtered off, washed with petroleumether and dried, yielding 23 parts (96.7%) of 4-(5-ethyl-1,3,4-oxadiazol-2-yl)phenol (interm. 8).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05100893
Source datasetuspto-grants-1992_03
ORD IDord-9bab4766d44748f49a8beacfc5d4634f
Source noteuspto-grants-1992_03