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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1719932Generated: October 31, 2026

Diethyl (ethoxymethylene)malonate → HCID 13060483, compound

https://huagongshe.com/reaction/1719932

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiethyl (ethoxymethylene)malonateHCID 6871—
ReactantHCID 13060450HCID 13060450—
SolventIsobutanolHCID 6560—
ProductHCID 13060483HCID 1306048342.5%

Reaction Conditions

Temperature100 °C

Reaction Steps

A mixture of 4-amino-6-(4-methylpiperazinyl)quinazoline (2.19 g) and diethyl ethoxymethylenepropanedioate (2.13 g) in isobutylalcohol (9 ml) was stirred for 2 hours and 25 minutes at 100° C. and then cooled to ambient temperature. The resultant mixture was concentrated under reduced pressure to give a residue, which was recrystallized from ethanol to give crystalline diethyl[{6-(4-methylpiperazinyl)-4-quinazolinylamino}methylene]propanedioate (1.58 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04543356
Source datasetuspto-grants-1985_09
ORD IDord-b8cc39b178984bfe92c7e52c31b1c637
Source noteuspto-grants-1985_09