Mucochloric Anhydride

Title: Mucochloric Anhydride
CAS Registry Number: 4412-09-3
CAS Name: 5,5¢-Oxybis[3,4-dichloro-2(5H)-furanone]
Additional Names: bis[3,4-dichloro-2(5)-furanonyl] ether
Manufacturers' Codes: GC-2466
Molecular Formula: C8H2Cl4O5
Molecular Weight: 319.91
Percent Composition: C 30.04%, H 0.63%, Cl 44.33%, O 25.01%
Literature References: Prepd by refluxing mucochloric acid with benzenesulfonic acid in a mixture of benzene and dioxane: Mowry, J. Am. Chem. Soc. 72, 2535 (1950).
Properties: Crystals from benzene + dioxane, a-isomer (racemate): mp 141-143°, b-isomer (meso form): mp 180°. Substantially insol in water. Sol in many organic solvents, such as acetone, xylene, cyclohexanone, methylnaphthalenes.
Melting point: mp 141-143°; mp 180°
Use: Fungicide. Ref: Gilbert, US 2861919 (1958 to Allied Chem.).
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