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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 980883Generated: October 29, 2026

Chlorosuccinimide → 8-Chloro-5,6-dimethoxy-3-methylquinazolin-2,4(1H, 3H)-dione

https://huagongshe.com/reaction/980883

Reaction equation

Participants

RoleNameHCIDCharge
ReactantChlorosuccinimideHCID 31398—
Reactant5,6-Dimethoxy-3-methylquinazolin-2,4(1H, 3H)-dioneHCID 13772013—
Product8-Chloro-5,6-dimethoxy-3-methylquinazolin-2,4(1H, 3H)-dioneHCID 5404796367%

Reaction Steps

Following the procedure employed in Example 11, treatment of 5,6-dimethoxy-3-methylquinazolin-2,4(1H, 3H)-dione 1/4 hydrate with N-chlorosuccinimide gives the title compound after isopropanol crystallization in 67% yield, mp 224°-227° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04639518
Source datasetuspto-grants-1987_01
ORD IDord-8d6f30a41a23470daf16b507adfdac77
Source noteuspto-grants-1987_01