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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 342097Generated: October 30, 2026

Dimethyl Sulfoxide → 3,4-Dihydro-2H-1-benzopyran-5-carboxaldehyde

https://huagongshe.com/reaction/342097

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDimethyl SulfoxideHCID 679—
ReactantOxalyl chlorideHCID 65578—
Reactant3,4-Dihydro-2H-1-benzopyran-5-methanolHCID 18787460—
SolventTriethylamineHCID 8471—
Product3,4-Dihydro-2H-1-benzopyran-5-carboxaldehydeHCID 18787481100%

Reaction Steps

(2H-3,4-Dihydrobenzopyran-5-yl)methanol was oxidized using DMSO, oxalyl chloride, and triethyl amine similar to the above procedures to give the product as a clear oil (100%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05856529
Source datasetuspto-grants-1999_01
ORD IDord-7aad4e11c4b54566be643d774b9aa6e4
Source noteuspto-grants-1999_01