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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 128283Generated: October 26, 2026

Sodium Methoxide → methyl 2,7-dimethyl-4-hydroxy-2H-[1] benzothieno [2,3-e]-1,2-thiazine-3-carboxylate-1,1-dioxide

https://huagongshe.com/reaction/128283

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium MethoxideHCID 10942334—
ReactantMethyl 3-{[(ethoxy-carbonyl-methyl)methylamino]sulfonyl}-6-methyl-benzo[b]thiophene-2-carboxylateHCID 23468714—
SolventMethanolHCID 887—
Productmethyl 2,7-dimethyl-4-hydroxy-2H-[1] benzothieno [2,3-e]-1,2-thiazine-3-carboxylate-1,1-dioxideHCID 7057826751%

Reaction Steps

Prepared analogous to Example 1(e) from methyl 3-{[(ethoxy-carbonyl-methyl)methylamino]sulfonyl}-6-methyl-benzo[b]thiophene-2-carboxylate by reaction with sodium methylate in anhydrous methanol with a yield of 51% of theory.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04259336
Source datasetuspto-grants-1981_03
ORD IDord-3c3a31d342464fd0a373292491db0727
Source noteuspto-grants-1981_03