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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2279793Generated: October 31, 2026

6-Methylanthranilic acid → 5-methyl-2,4-dihydro-1H-3,1-benzoxazine-2,4-dione

https://huagongshe.com/reaction/2279793

Reaction equation

Participants

RoleNameHCIDCharge
Reactant6-Methylanthranilic acidHCID 151210—
Reactant6-Fluoroisatoic anhydrideHCID 2783057—
Product5-methyl-2,4-dihydro-1H-3,1-benzoxazine-2,4-dioneHCID 10487522—

Reaction Steps

Prepared analogously to Compound 27E replacing 2-amino-6-fluorobenzoic acid with 2-amino-6-methylbenzoic acid. 1H NMR (DMSO-d6, 500 MHz) δ 2.32 (s, 3H), 7.09 (m, 1H), 7.21-7.25 (m, 1H), 7.51-7.61 (m, 1H), 11.65 (br.s, 1H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09133224B2
Source datasetuspto-grants-2015_09
ORD IDord-456ba860b5804d6b8bd12537ae2911f4
Source noteuspto-grants-2015_09