Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 507487Generated: October 29, 2026

Maleic Anhydride → HCID 53786874, compound

https://huagongshe.com/reaction/507487

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMaleic AnhydrideHCID 7923—
ReactantN4-(3-Bromophenyl)quinazoline-4,6-diamineHCID 5328042—
SolventWaterHCID 962—
SolventDimethylformamideHCID 6228—
ProductHCID 53786874HCID 5378687486%

Reaction Conditions

Temperature70 °C

Reaction Steps

To a solution of 6-amino-4-[(3-bromophenyl)amino]-quinazoline (0.78 g, 2.5 mmol) in 8 mL of DMF was added maleic anhydride (0.266 g, 2.7 mmol), and the mixture was heated with stirring in a 70° C. oil bath for 2.5 hours. The resulting suspension was cooled to room temperature and then diluted with water. The solid was collected, washed sequentially with a mixture of toluene/DMF (1:1), water, and IPA. The solid was dried in vacuo at 60° C. for 16 hours to afford 3-[4-(3-bromo-phenylamino)-quinazolin-6-ylcarbamoyl]-acrylic acid (Z) (0.87 g, 86%) as a pale yellow powder, mp 224-225° C. (decomposition with gas evolution).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07786131B2
Source datasetuspto-grants-2010_08
ORD IDord-d74b8341039a4600bf53349466110d14
Source noteuspto-grants-2010_08