Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1951636Generated: November 3, 2026

Isoniazid → HCID 178465646, compound

https://huagongshe.com/reaction/1951636

Reaction equation

Participants

RoleNameHCIDCharge
ReactantIsoniazidHCID 3767—
ReactantHCID 178467425HCID 178467425—
CatalystHydrochloric AcidHCID 313—
SolventEthanolHCID 702—
SolventWaterHCID 962—
ProductHCID 178465646HCID 178465646—

Reaction Conditions

Temperature55 °C

Reaction Steps

1-[4-((1R,2S,3R)-1,2,3,4-Tetrahydroxy-butyl)-1H-imidazol-2-yl]-ethanone (168 mg, 0.73 mmol) was suspended in ethanol (4 ml) and water (1 ml). Isonicotinic hydrazide (110 mg, 0.80 mmol, 1.1 eq.) and hydrochloric acid (one drop, 12 N) were added, and the suspension was stirred at 55° C. for 24 hours. LCMS analysis indicated the formation of the product and the absence of starting material. The reaction mixture was cooled to room temperature, and partially concentrated in vacuo. The resulting white precipitate was collected and washed with ethanol to yield the product, as one apparent isomer, as a white solid: 136 mg (75%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08404732B2
Source datasetuspto-grants-2013_03
ORD IDord-bb828a42b65f4f519a24fde090de6831
Source noteuspto-grants-2013_03