beta-Cyclodextrin hydrate

• Catalog No.: A14529
• CAS Number: 68168-23-0
• M. F.: C42H72O36
• M. W.: 1152.99948

SYNONYMS

• Title: β-环糊精,水合物
• IUPAC name: 5,10,15,20,25,30,35-heptakis(hydroxymethyl)-2,4,7,9,12,14,17,19,22,24,27,29,32,34-tetradecaoxaoctacyclo[31.2.2.2^3,^6.2^8,^1^1.2^1^3,^1^6.2^1^8,^2^1.2^2^3,^2^6.2^2^8,^3^1]nonatetracontane-36,37,38,39,40,41,42,43,44,45,46,47,48,49-tetradecol hydrate
• IUPAC Traditional name: cyclo-hepta-amylose hydrate
• Synonyms: Cycloheptaamylose; Schardinger beta-dextrin

DATABASE IDS

• Merck Index: 142718
• EC Number: 231-493-2
• CAS Number: 68168-23-0
• Beilstein Number: 5915513
• MDL Number: MFCD00150811

PROPERTIES

• Melting Point: 288°C dec.
• Optical Rotation: +142 (c=1.5 in water)
• RTECS: GU2293000
• TSCA Listed: 是

REFERENCES

• Has been used to influence regioselectivity in Diels-Alder reactions: J. Chem. Soc., Chem. Commun., 971 (1995); for reaction scheme, see 2,6-Dimethyl-p-benzoquinone, A11342. Encapsulation of aniline and N-substituted anilines allows regioselective bromination: Tetrahedron, 52, 3487 (1996). Catalyzes the Boc protection of amines with Di-tert-butyl dicarbonate, A14708 under neutral, aqueous conditions: Synlett, 1110 (2006).
• For a brief of uses as a supramolecular catayst in organic synthesis, see: Synlett, 175 (2007).