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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2231244Generated: November 1, 2026

Selenium Dioxide → 1-Cyclopropyl-1H-benzimidazole-2-carbaldehyde

https://huagongshe.com/reaction/2231244

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSelenium DioxideHCID 24007—
Reactant1-Cyclopropyl-2-methyl-1H-benzimidazoleHCID 21286283—
Solvent1,4-DioxaneHCID 31275—
Product1-Cyclopropyl-1H-benzimidazole-2-carbaldehydeHCID 1507205857.6%

Reaction Steps

Selenium dioxide (1.2 g, 0.011 mole) was added to 60 ml of dioxane containing 1.87 g .(0.011 mole) of 1-cyclopropyl-2-methylbenzimidazole and the reaction heated to reflux for 2.5 hours. The reaction was filtered and the filtrate concentrated to a dark oil, 3.0 g. Chromatographing of the residue on silica gel gave 1.18 g of the desired compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04782050
Source datasetuspto-grants-1988_11
ORD IDord-e0ecb81061674e09bdf6a889217e79f0
Source noteuspto-grants-1988_11