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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1249743Generated: November 4, 2026

Formamide → HCID 135679869, compound

https://huagongshe.com/reaction/1249743

Reaction equation

Participants

RoleNameHCIDCharge
ReactantFormamideHCID 713—
Reactant6-Amino-1,3-dioxaindane-5-carboxylic acidHCID 7064068—
ProductHCID 135679869HCID 13567986927%

Reaction Conditions

Temperature140 °C

Reaction Steps

A mixture of 6-amino-benzo[1,3]dioxole-5-carboxylic acid (4.3 g, 23.7 mmol) and formamide (15 mL) was heated to 140° C. for 2 hours, then to 170° C. for 2 hours. After cooling to room temperature, precipitate was collected to give 7H-[1,3]dioxolo[4,5-g]quinazolin-8-one (1.11 g, 27%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06335344B1
Source datasetuspto-grants-2002_01
ORD IDord-567a47db4da340eda394e5ce63285dd8
Source noteuspto-grants-2002_01