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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1664767Generated: October 26, 2026

Trimethylamine oxide dihydrate → HCID 59165782, compound

https://huagongshe.com/reaction/1664767

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrimethylamine oxide dihydrateHCID 198430—
Reactantspiro[cyclopent-3-ene-1,3'-pyrrolo[2,3-b]pyridin]-2'(1'H)-oneHCID 59165783—
CatalystOsmium TetroxideHCID 30318—
SolventDichloromethaneHCID 6344—
ProductHCID 59165782HCID 5916578285.7%

Reaction Steps

To a mixture of trimethylamine-N-oxide dihydrate (408 mg, 3.67 mmol) and spiro[cyclopent-3-ene-1,3′-pyrrolo[2,3-b]pyridin]-2′(1′H)-one (622 mg, 3.34 mmol) in dichloromethane (115 mL) was added osmium tetroxide (25 uL of 2.5% solution in 2-methyl-2-propanol). After 24 h the reaction mixture was concentrated. The crude product was loaded onto a silica gel chromatography column with a minimal amount of methanol and eluted with a gradient of 5 to 20% methanol:dichloromethane to give the title compound (0.63 g). MS: m/z 221.0 (M+1).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08039460B2
Source datasetuspto-grants-2011_10
ORD IDord-512b00fe684f4bd4982161f57d46db0f
Source noteuspto-grants-2011_10