Title: Isatide
CAS Registry Number: 464-73-3
CAS Name: 1,1¢,3,3¢-Tetrahydro-3,3¢-dihydroxy-[3,3¢-bi-2H-indole]-2,2¢-dione
Additional Names: 3,3¢-dihydroxy-[3,3¢-biindoline]-2,2¢-dione; 3,3¢-dihydroxy-3,3¢-dihydroisoindigo; isatyde
Molecular Formula: C16H12N2O4
Molecular Weight: 296.28
Percent Composition: C 64.86%, H 4.08%, N 9.46%, O 21.60%
Literature References: Prepn by dimerization reduction of isatin with ammonium hydrosulfide: Laurent, Ann. Chim. 3, 372 (1841); by piperidine-catalyzed condensation of isatin and dioxindole: Heller, Ber. 37, 943 (1904); Wahl, Hansen, Compt. Rend. 178, 393 (1924); from isatin and acenaphthene in sunlight: Oliveri-Mandala, Deleo, Gazz. Chim. Ital. 79, 337 (1949). Structure: Lefèvre, Bull. Soc. Chim. Fr. 19, 113 (1916); Sumpter, J. Am. Chem. Soc. 54, 2917 (1932); Bergmann, ibid. 77, 1549 (1955).
Properties: Prisms from alcohol or ether, dec 245°. Difficultly sol in alcohol and ether; practically insol in water.
Status: This monograph has been retired and is no longer subject to revision or update. |