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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1435847Generated: October 31, 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/1435847

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 6-hydroxymethyl-4H-benzo[1,4]thiazin-3-one (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 numberUS07618959B2
Source datasetuspto-grants-2009_11
ORD IDord-7dedef2d37544c4c85ef2cbb46b6c020
Source noteuspto-grants-2009_11