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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1190301Generated: October 30, 2026

4-(8-Bromo-4,5-dihydro-6-oxa-3-thia-1-aza-benzo[e]azulen-2-yl)-2-isopropyl-5-methyl-2,4-dihydro-[1,2,4]triazol-3-one → 4-(8-Iodo-4,5-dihydro-6-oxa-3-thia-1-aza-benzo[e]azulen-2-yl)-2-isopropyl-5-methyl-2,4-dihydro-[1,2,4]triazol-3-one

https://huagongshe.com/reaction/1190301

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-(8-Bromo-4,5-dihydro-6-oxa-3-thia-1-aza-benzo[e]azulen-2-yl)-2-isopropyl-5-methyl-2,4-dihydro-[1,2,4]triazol-3-oneHCID 67050567—
Reactant4-(8-Iodo-4,5-dihydro-6-oxa-3-thia-1-aza-benzo[e]azulen-2-yl)-2,5-dimethyl-2,4-dihydro-[1,2,4]triazol-3-oneHCID 67050573—
Reactant4-(8-Bromo-4,5-dihydro-6-oxa-3-thia-1-aza-benzo[e]azulen-2-yl)-2,5-dimethyl-2,4-dihydro-[1,2,4]triazol-3-oneHCID 67050588—
Reactant3-methyl-1-(propan-2-yl)-4,5-dihydro-1H-1,2,4-triazol-5-oneHCID 136340527—
Product4-(8-Iodo-4,5-dihydro-6-oxa-3-thia-1-aza-benzo[e]azulen-2-yl)-2-isopropyl-5-methyl-2,4-dihydro-[1,2,4]triazol-3-oneHCID 67050536—

Reaction Steps

Following a similar procedure for the mixture of 4-(8-bromo-4,5-dihydro-6-oxa-3-thia-1-aza-benzo[e]azulen-2-yl)-2,5-dimethyl-2,4-dihydro-[1,2,4]triazol-3-one and 4-(8-iodo-4,5-dihydro-6-oxa-3-thia-1-aza-benzo[e]azulen-2-yl)-2,5-dimethyl-2,4-dihydro-[1,2,4]triazol-3-one using 2-isopropyl-5-methyl-2,4-dihydro-[1,2,4]triazol-3-one, the mixture of 4-(8-Bromo-4,5-dihydro-6-oxa-3-thia-1-aza-benzo[e]azulen-2-yl)-2-isopropyl-5-methyl-2,4-dihydro-[1,2,4]triazol-3-one and 4-(8-Iodo-4,5-dihydro-6-oxa-3-thia-1-aza-benzo[e]azulen-2-yl)-2-isopropyl-5-methyl-2,4-dihydro-[1,2,4]triazol-3-one (˜1:1) was isolated as an off-white solid (49 mg). LCMS: RT=5.17 min, [M+H]+=421/423 and 469

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08673952B2
Source datasetuspto-grants-2014_03
ORD IDord-2ed3e262487141699ba866a51b5969e6
Source noteuspto-grants-2014_03