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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 224501Generated: October 29, 2026

Dimetridazole → HCID 21827597, compound

https://huagongshe.com/reaction/224501

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDimetridazoleHCID 3090—
ReactantTriethylamineHCID 8471—
ReactantOxalic acid monoethylester chlorideHCID 23618337—
SolventDiethyl EtherHCID 3283—
ProductHCID 21827597HCID 2182759754%

Reaction Steps

The reaction of 1,2-dimethyl-5-nitroimidazole with oxalic acid ethyl ester chloride in the course of 22 hours in the presence of triethylamine and of substantial amounts of ether gives 1-carbethoxy-2-(1-methyl-5-nitro-imidazol-2-yl)-vinyl ethyl oxalate in 54 percent yield; the latter compound, on treatment with ethanol, gives 1-methyl-5-nitro-imidazol-2-yl-pyruvic acid ethyl ester in 43 percent yield (J. Heterocycl., loc. cit., 904 and 905). ##STR4##

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04232165
Source datasetuspto-grants-1980_11
ORD IDord-1280b96a4ee24fa8b177e39fe0c1c120
Source noteuspto-grants-1980_11