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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1047305Generated: October 25, 2026

Triethylamine → HCID 178419362, compound

https://huagongshe.com/reaction/1047305

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriethylamineHCID 8471—
ReactantHydrazinecarboxaldehydeHCID 12229—
ReactantEthyl 4-bromobenzimidate hydrochlorideHCID 19017302—
ProductHCID 178419362HCID 17841936248.3%

Reaction Conditions

Temperature85 °C

Reaction Steps

Ethyl 4-bromobenzimidate hydrochloride (35.6 g, 135 mmol), formic hydrazide (16.16 g, 269 mmol) and triethylamine (75 mL, 538 mmol) were combined in a screw capped flask and heated to 85° C. for 16 h. The solution was condensed under reduced pressure to afford a solid, which was partitioned between water and ethyl acetate (3×), dried over magnesium sulfate and solvent removed under reduced pressure. The resulting solid was sonicated with 20% ethyl acetate in hexanes, filtered and dried to afford the title compound (14.6 g, 65.2 mmol, 48% yield). MS (ESI) m/z 224.1 [M]+, 226.1 [M+2]+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08569494B2
Source datasetuspto-grants-2013_10
ORD IDord-13106086af0f434e86f05a50b0f14a08
Source noteuspto-grants-2013_10