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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2296479Generated: October 31, 2026

Water → HCID 13060509, compound

https://huagongshe.com/reaction/2296479

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantDimethyl methoxymethylenemalonateHCID 90770—
ReactantHCID 13060453HCID 13060453—
SolventDimethylformamideHCID 6228—
ProductHCID 13060509HCID 1306050982.5%

Reaction Conditions

Temperature100 °C

Reaction Steps

A mixture of 4-amino-7-pivalamidoquinazoline (10.5 g) and dimethyl methoxymethylenepropanedioate (10.9 g) in N,N-dimethylformamide (32 ml) was stirred at 100° C. for 1 hour and 25 minutes. After the reaction mixture was cooled to ambient temperature, water was added. The resulting solid was separated by filtration, washed with water and dried. The crustals were recrystallized from a mixture of ethyl acetate and ethanol to give crystalline dimethyl [[7-pivalamido-4-quinazolinylamino]methylene]propanedioate (13.7 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04429126
Source datasetuspto-grants-1984_01
ORD IDord-a7c29dc3acea481480c8fdd071c70cee
Source noteuspto-grants-1984_01