Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 923342Generated: October 25, 2026

Amitrole → HCID 178515486, compound

https://huagongshe.com/reaction/923342

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmitroleHCID 1639—
ReactantEthyl 3-(2,3-dihydro-1,4-benzodioxin-6-yl)-3-oxopropanoateHCID 15315318—
SolventAcetic AcidHCID 176—
ProductHCID 178515486HCID 17851548615%

Reaction Conditions

Temperature120 °C

Reaction Steps

A mixture of 2H-1,2,4-triazol-3-amine (200 mg, 2.38 mmol, 1.00 equiv), acetic acid (3 mL), and ethyl 3-(2,3-dihydrobenzo[b][1,4]dioxin-6-yl)-3-oxopropanoate (600 mg, 2.40 mmol, 1.01 equiv) was stirred for 24 hr at 120° C. and then concentrated to dryness. The resulting solid was washed with MeOH and collected by filtration. The solid was dissolved in 15 mL of NH4OH (aq.) and filtered. The filtrate was adjusted to pH 5 with HOAc. The resulting solid was collected by filtration and washed with water. The solid was dried to get 95 mg (15%) of 5-(2,3-dihydrobenzo[b][1,4]dioxin-6-yl)-[1,2,4]triazolo[1,5-α]pyrimidin-7(4H)-one as a white solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09278973B2
Source datasetuspto-grants-2016_03
ORD IDord-bde312b457114b68bc8a3ac5eae6bfc4
Source noteuspto-grants-2016_03