Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 223354Generated: October 26, 2026

Salicylic acid, hydrazide → Fenadiazole

https://huagongshe.com/reaction/223354

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSalicylic acid, hydrazideHCID 13637—
ReactantOrthoameisensaureathylesterHCID 5231668—
ProductFenadiazoleHCID 1388364.7%

Reaction Steps

90 g (0.6 mole) of salicylic acid hydrazide and 355.2 g (2.4 moles) of orthoformic acid ethyl ester are refluxed for 22 hours. Excess of the ester is distilled off and the solid residue is recrystallized from ethanol. 62.9 g of colorless crystals (64.7% of theory) are obtained; melting point 112°-113° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04353904
Source datasetuspto-grants-1982_10
ORD IDord-11f395897a36407c812ff3a5df684d20
Source noteuspto-grants-1982_10