Synthesis of Inclusion Compounds of Br–Th–Py–Br and (RO)<sub>2</sub>B–Th–Py–Br (Th: Thiophene-2,5-diyl; Py: Pyridine-2,5-diyl) with γ-Cyclodextrin
作者:Take-aki Koizumi、Rieko Kuwahara、Isao Yamaguchi、Takakazu Yamamoto
DOI:10.1246/bcsj.20100247
日期:2011.3.15
Inclusion compounds of Br–Th–Py–Br and (RO)2B–Th–Py–Br ((OR)2: –OCH2C(CH3)2CH2O–) with γ-cyclodextrin (CD), denoted by Br–ThPy–Br–CD and (RO)2B–ThPy–Br–CD, respectively, were prepared. Ni(0)-promoted dehalogenative coupling of Br–ThPy–Br–CD gave an oligomeric inclusion product, Oligo(ThPy–CD). Oligo(ThPy–CD) was soluble in organic solvents, and 1H- and CP/MAS 13C1H} NMR spectra as well as the powder XRD pattern of Oligo(ThPy–CD) supported the CD-encapsulated structure.
Br–Th–Py–Br 和 (RO)2B–Th–Py–Br ((OR)2: –OCH2C(CH3)2CH2O–) 与 γ-环糊精 (CD) 的包合物,记为 Br–ThPy–Br分别制备了-CD和(RO)2B-ThPy-Br-CD。 Ni(0) 促进的 Br-ThPy-Br-CD 脱卤偶联得到寡聚包合物产物 Oligo(ThPy-CD)。 Oligo(ThPy-CD)可溶于有机溶剂,1H-和CP/MAS 13C1H} NMR谱以及Oligo(ThPy-CD)的粉末XRD图支持CD包封的结构。