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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1437326Generated: November 4, 2026

6-(Hydroxymethyl)-2H-benzo[b][1,4]thiazin-3(4H)-one → 3-Oxo-3,4-dihydro-2H-1,4-benzothiazine-6-carbaldehyde

https://huagongshe.com/reaction/1437326

Reaction equation

Participants

RoleNameHCIDCharge
Reactant6-(Hydroxymethyl)-2H-benzo[b][1,4]thiazin-3(4H)-oneHCID 21873700—
CatalystHCID 178418406HCID 178418406—
SolventChloroformHCID 6212—
SolventTetrahydrofuranHCID 8028—
Product3-Oxo-3,4-dihydro-2H-1,4-benzothiazine-6-carbaldehydeHCID 1094334872.2%

Reaction Steps

A stirred solution of the alcohol (b) (3.5 g) in chloroform (150 ml) and tetrahydrofuran (300 ml) was treated with manganese dioxide (7.8 g) for 18 hours and was filtered and evaporated to give a white solid (2.5 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07622481B2
Source datasetuspto-grants-2009_11
ORD IDord-2aaf477b8352419d9d7dc710e955a5bb
Source noteuspto-grants-2009_11