Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1605968Generated: October 29, 2026

Diethyl (ethoxymethylene)malonate → Diethyl (3-methoxycarbonyl-4-methylthienyl)aminomethylenemalonate

https://huagongshe.com/reaction/1605968

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiethyl (ethoxymethylene)malonateHCID 6871—
ReactantMethyl 2-amino-4-methylthiophene-3-carboxylateHCID 2759773—
ProductDiethyl (3-methoxycarbonyl-4-methylthienyl)aminomethylenemalonateHCID 13217727—

Reaction Steps

Reaction of methyl 2-amino-4-methylthiophene-3-carboxylate with diethyl ethoxymethylenemalonate in a manner similar to that used in Reference Example 10 yields diethyl (3-methoxycarbonyl-4-methylthienyl)aminomethylenemalonate as crystals melting at 105.5°-106°C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS03951989
Source datasetuspto-grants-1976_04
ORD IDord-e9e3152360a14acd819c8104e586717c
Source noteuspto-grants-1976_04