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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2372869Generated: October 30, 2026

O-Xylene → HCID 15044333, compound

https://huagongshe.com/reaction/2372869

Reaction equation

Participants

RoleNameHCIDCharge
ReactantO-XyleneHCID 7237—
ReactantMaleic AnhydrideHCID 7923—
Reactant3,5-Di-tert-butyl-4-hydroxyhydrocinnamic acid hydrazideHCID 64865—
SolventWaterHCID 962—
ProductHCID 15044333HCID 1504433386.5%

Reaction Steps

A mixture of maleic anhydride (4.9 g, 50.0 mmol), 3-(3,5-di-t-butyl-4-hydroxyphenyl)propanoic acid hydrazide (15.2 g, 50.0 mmol) and 250 ml of xylene was refluxed for one hour under a nitrogen atmosphere with the azeotropic removal of water. The solvent was then removed on a rotary evaporator. The residual mass was extracted with 100 ml of tetrahydrofuran and the extract was added to 500 ml of hexane to precipitate the product. The product was collected by filtration and air dried. 16.1 g of a solid material was obtained having a melting range of 90°-94° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05100940
Source datasetuspto-grants-1992_03
ORD IDord-551367ae29034aed820105004c68e38a
Source noteuspto-grants-1992_03