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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1741862Generated: October 25, 2026

Ethyl isocyanate → 1-(3-Fluorobenzoyl)-4-ethyl semicarbazide

https://huagongshe.com/reaction/1741862

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl isocyanateHCID 8022—
Reactant3-FluorobenzohydrazideHCID 351640—
SolventTetrahydrofuranHCID 8028—
Product1-(3-Fluorobenzoyl)-4-ethyl semicarbazideHCID 19010927—

Reaction Steps

To a solution of 3-fluorobenzhydrazide (5.0 g, 0.033 mol) in tetrahydrofuran (100 mL) was added ethyl isocyanate (2.6 g, 0.036 mol) at room temperature. After stirring for 24 hr, the resultant precipitate was collected by suction-filtration to give 1-(3-fluorobenzoyl)-4-ethyl semicarbazide in quantitative yield.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05334726
Source datasetuspto-grants-1994_08
ORD IDord-60e167f32a3f43108cdec2a2df8fa259
Source noteuspto-grants-1994_08