2,3-Dimethylmaleic anhydride

• Catalog No.: L12919
• CAS Number: 766-39-2
• M. F.: C6H6O3
• M. W.: 126.11004
• Purity: 97%

SYNONYMS

• Title: 2,3-二甲基马来酸 酐
• IUPAC name: dimethyl-2,5-dihydrofuran-2,5-dione
• IUPAC Traditional name: 2,5-furandione, 3,4-dimethyl-
• Synonyms: 3,4-Dimethyl-2,5-furandione

DATABASE IDS

• MDL Number: MFCD00005523
• CAS Number: 766-39-2
• Beilstein Number: 112044
• EC Number: 212-165-8

PROPERTIES

• Purity: 97%
• Boiling Point: 222-223°C
• Melting Point: 93-96°C
• GHS Hazard statements: H315-H319-H335
• European Hazard Symbols: Irritant (Xi)
• GHS Precautionary statements: P261-P305+P351+P338-P302+P352-P321-P405-P501A
• Risk Statements: 36/37/38
• RTECS: ON4025000
• Safety Statements: 26-37
• Storage Warning: Moisture Sensitive
• TSCA Listed: 是

REFERENCES

• Does not undergo Diels-Alder reactions with furan, but does react with 1,3-Diphenylisobenzofuran, L00101, to give benzocantharadin: J. Org. Chem., 47, 4011 (1982).
• The use of the dimethylmaleoyl (DMM) group has been investigated for amino group protection in oligosaccharide synthesis. The DMM group is introduced using triethylamine as base. It promotes ? -linkage by neighboring group participation and is stable to acids and non-nucleophilic bases. Cleavage can be brought about by treatment with dilute aqueous NaOH: Eur. J. Org. Chem., 2305 (1998).