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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2276403Generated: October 25, 2026

Methyl acetoacetate → Methyl 3-(2-fluorophenyl)-5-methylisoxazole-4-carboxylate

https://huagongshe.com/reaction/2276403

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethyl acetoacetateHCID 7757—
Reactant2-fluoro-N-hydroxybenzenecarboximidoyl chlorideHCID 3758118—
ReactantSodium MethoxideHCID 10942334—
SolventMethanolHCID 887—
ProductMethyl 3-(2-fluorophenyl)-5-methylisoxazole-4-carboxylateHCID 1875627272.3%

Reaction Steps

In a similar manner as described in Preparation Example 17, by using methanol (160 mL), 2-fluoro-N-hydroxybenzimidoyl chloride (8.00 g, 46.09 mmol), methylacetoacetate (10.07 g, 92.18 mmol) and sodium methoxide (7.47 g, 138.27 mmol), a white solid required compound (7.84 g, 33.33 mmol, 72%) was obtained.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09132126B2
Source datasetuspto-grants-2015_09
ORD IDord-c8ed9da7a8954d24bc2f2261ffa694b1
Source noteuspto-grants-2015_09