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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 9718Generated: October 28, 2026

Nitric Acid → 6-Nitro-2,3-dihydro-benzo[1,4]oxathiine-4,4-dioxide

https://huagongshe.com/reaction/9718

Reaction equation

Participants

RoleNameHCIDCharge
ReactantNitric AcidHCID 944—
ReactantSulfuric AcidHCID 1118—
Reactant34257-54-0HCID 21075455—
SolventWaterHCID 962—
Product6-Nitro-2,3-dihydro-benzo[1,4]oxathiine-4,4-dioxideHCID 2198816453.7%

Reaction Steps

2.554 g 66% H2SO4 and 1.454 g 65% nitric acid were mixed at 0° C. 2.395 g 2,3-dihydro-benzo[1,4]oxathiine-4,4-dioxide were added in portions at 0° C. After stirring for 30 min. the mixture was diluted with water and the product isolated by filtration. Chromatography on silica yielded 1.6 g of the title compound and 0.37 g 0.58 g of the 8-nitro isomer.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07091345B2
Source datasetuspto-grants-2006_08
ORD IDord-8f6706cc574948029bb2a0abec2abc5c
Source noteuspto-grants-2006_08