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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 328528Generated: October 29, 2026

Methanol → HCID 21548697, compound

https://huagongshe.com/reaction/328528

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethanolHCID 887—
ReactantPhenylhydrazineHCID 7516—
ReactantBenzoic acid, 4-fluoro-, ethyl esterHCID 67976—
ReactantSodium MethoxideHCID 10942334—
SolventWaterHCID 962—
ProductHCID 21548697HCID 21548697—

Reaction Conditions

Temperature25 °C

Reaction Steps

A mixture consisting of 101.2 g. (0.602 mole) ethyl p-fluorobenzoate, 250 ml. methanol, 70.0 g. (0.646 mole) phenylhydrazine, and 33.6 g. (0.621 mole) sodium methoxide (mixed in that order) was heated at the reflux temperature for 16 hrs. After cooling the reaction mixture to about 25° C. It was poured into 1500 ml. water. The aqueous mixture was filtered, and the filter cake was washed with water and recrystallized from 95% aqueous ethanol. The crystals melted at 174° to 178° C. An analytical sample of p-fluorobenzoic acid phenylhydrazide melting at 177° to 179° C. was obtained by recrystallizing once from a mixture of ethyl acetate and Skellysolve B (essentially a mixture of isomeric hexanes boiling in the range of 146° to 156° F.), and once from 75% aqueous ethanol.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04017540
Source datasetuspto-grants-1977_04
ORD IDord-017a35a28d704c50bc7c38cf4c1e24d2
Source noteuspto-grants-1977_04