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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 848041Generated: October 30, 2026

Oxalic Acid → Methyl 1-methyl-5-(cyanohydroxyphenylmethyl)pyrrole-2-acetate

https://huagongshe.com/reaction/848041

Reaction equation

Participants

RoleNameHCIDCharge
ReactantOxalic AcidHCID 971—
ReactantPhenylglyoxylonitrileHCID 11953—
ReactantMethyl 1-methylpyrrol-2-acetateHCID 103992—
SolventDiethyl EtherHCID 3283—
ProductMethyl 1-methyl-5-(cyanohydroxyphenylmethyl)pyrrole-2-acetateHCID 1294009412%

Reaction Steps

Benzoyl cyanide, 0.67 g (0.005 mole) and methyl 1-methylpyrrole-2-acetate, 0.76 g (0.005 mole) were stirred together in ether (2 ml) containing oxalic acid (0.04 g). The reaction was run in the dark at room temperature. After six days, the reaction mixture was placed in the freezer overnight, filtered, and washed with cold ether to yield 0.17 g (12 percent) of methyl 1-methyl-5-(cyanohydroxyphenylmethyl)pyrrole-2-acetate, mp 137°-8°. The solid state IR spectrum was identical to authentic material.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04294760
Source datasetuspto-grants-1981_10
ORD IDord-f28cd94c2cd240b29f9b55846bf16368
Source noteuspto-grants-1981_10