The electron-transfer reactions between N-substituted phenothiazines and 4-acetoxy-2,2,6,6-tetramethyl-1-oxopiperidinium hexachloroantimonate (ATPO) in the presence of β-cyclodextrin (β-CD) in an aqueous solution have been studied. N-phenylphenothiazine (PPT) and N-phenethylphenothiazine (PEPT), included by β-CD, can transfer an electron to the β-CD·ATPO complex. However, no electron-transfer reaction between the β-CD·N-benzylphenothiazine (β-CD·BPT) complex and the β-CD·ATPO complex was observed under the same conditions. It has been suggested that the electron-transfer reactions were controlled by the conformations of the N-substituted phenothiazines in the cavity of β-CD.
                                    在
水溶液中,研究了N取代苯
噻嗪与4-乙酰氧基-2,2,6,6-四甲基-1-氧基
哌啶铋酸六氯
锑盐(
ATPO)之间的电子转移反应,该反应在β-
环糊精(β-CD)的存在下进行。N-苯基苯
噻嗪(P
PT)和N-苯
乙基苯噻嗪(PE
PT),被β-CD 包含,可以向β-CD·
ATPO 复合物转移一个电子。然而,在相同条件下,未观察到β-CD·N-苄基苯
噻嗪(β-CD·B
PT)复合物与β-CD·
ATPO 复合物之间发生电子转移反应。研究表明,电子转移反应受限于N取代苯
噻嗪在β-CD腔内的构象。