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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 9721Generated: October 28, 2026

Methyl iodide → 7-Nitro-4-methyl-4H-benzo[1,4]thiazin-3-one

https://huagongshe.com/reaction/9721

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethyl iodideHCID 6328—
ReactantSodium hydrideHCID 24758—
Reactant7-Nitro-2H-benzo[b][1,4]thiazin-3(4H)-oneHCID 370121—
SolventDimethylformamideHCID 6228—
Product7-Nitro-4-methyl-4H-benzo[1,4]thiazin-3-oneHCID 21877780—

Reaction Steps

7.3 g 7-Nitro-4H-benzo[1,4]thiazin-3-one was suspended in 65 ml DMF and treated in portions with 1.6 g of 55% sodium hydride. Stirring a room temperature was continued for 0.5 hrs, than 5.2 g methyl iodide in 15 ml DMF were added dropwise. After another 3 hrs the mixture was poured into ice water and the title product isolated by filtration in a yield of 7.5 g.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07091345B2
Source datasetuspto-grants-2006_08
ORD IDord-0de7095bd6ab45469c4e0d001ceb86a0
Source noteuspto-grants-2006_08