Carbic Anhydride CAS Registry Number: 129-64-6 降冰片烯二酸酐
CAS Name: 3aa,4,7,7aa-Tetrahydro-4a,7a-methanoisobenzofuran-1,3-dione
Additional Names: cis-endo-5-norbornene-2,3-dicarboxylic anhydride; endo-cis-bicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic anhydride; 3,6-endo-methylene-1,2,3,6-tetrahydro-cis-phthalic anhydride; 3,6-endo-methylene-D4-tetrahydrophthalic anhydride; nadic anhydride
Percent Composition: C 65.85%, H 4.91%, O 29.24%
📌 参考资料/链接：
Literature References: Prepd by the reaction of maleic anhydride with cyclopentadiene in benzene: Diels, Alder, Ann. 460, 98 (1928). Crystal structure: Destro et al., Acta Crystallogr. 25B, 2465 (1969).
📄 详细内容
Properties: Shiny, orthorhombic crystals from petr ether, mp 164-165°. d 1.417. Converted to equilibrium mixtures with exo-cis isomers when heated above mp. Sol in benzene, toluene, acetone, carbon tetrachloride, chloroform, ethanol, ethyl acetate. Slightly sol in petr ether. Reacts with water to form the corresponding acid. Forms the g-lactone of 5-hydroxy-2,3-norcamphanedicarboxylic acid in 50% H2SO4.
Melting point: mp 164-165°
Density: d 1.417
产品链接: 129-64-6››