Synthesis of oligoadducts of malonic acid C60 and their scavenging effects on hydroxyl radical

被引：38
作者：
Cheng, FY
Yang, XL
Zhu, HS
Sun, J
Liu, Y
机构：
[1] Beijing Inst Technol, Res Ctr Mat Sci, Beijing 100081, Peoples R China
[2] Chinese Acad Sci, State Key Lab Struct Chem Unstable & Stable Speci, Inst Chem, Beijing 100864, Peoples R China
来源：
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS | 2000年 / 61卷 / 07期
基金：
中国国家自然科学基金;
关键词：
malonic acid C-60; one-pot" synthesis; scavenging activity; hydroxyl radical;
D O I：
10.1016/S0022-3697(99)00353-4
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Seven malonate derivatives of C-60 With different addition number and regiostructure were obtained by the "one-pot" reaction of C-60 with diethyl bromomalonate (1:6) and subsequent separation by silica gel chromatography. The corresponding malonic acid derivatives of Cw were formed by hydrolyzing with NaH and CH3OH. Four of them with different addition number (C-60(*C(COOH)(2))(n), n = 1-4) were selected to study the scavenging effects on hydroxyl radical. It was shown that these water-soluble C-60 derivatives had scavenging activity and the efficiency was dependent on their concentration and addition number. (C) 2000 Elsevier Science Ltd. All rights reserved.
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页码：1145 / 1148
页数：4
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