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首页> 外文期刊>Electrochemistry communications >Electrochemical study of two tris-O-substituted calix[4]arenes: 25,27-dipropoxy-26-hydroxy-28-benzoyloxycalix[4]arene(partial cone) and 25,27-dibenzyl-26-hydroxy-28-benzoyloxy-calix[4]-arene (partial cone). Electro synthesis of the corresponding cali
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Electrochemical study of two tris-O-substituted calix[4]arenes: 25,27-dipropoxy-26-hydroxy-28-benzoyloxycalix[4]arene(partial cone) and 25,27-dibenzyl-26-hydroxy-28-benzoyloxy-calix[4]-arene (partial cone). Electro synthesis of the corresponding cali

机译:两种三-O-取代杯[4]芳烃的电化学研究:25,27-二丙氧基-26-羟基-28-苯甲酰氧基杯[4]芳烃(部分圆锥)和25,27-二苄基-26-羟基-28-苯甲酰氧基-calix [4] -arene(部分锥体)。电合成相应的cali

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摘要

The anodic oxidation of 25,27-dipropoxy-26-hydroxy-28-benzoyloxycalix[4]arene 1 and 25,27-dibenzyl-26-hydroxy-28-benzoyloxycalix[4]arene 2 in dichloromethane was investigated by electrochemical and spectroclectrochemical techniques. For both, the overall reaction is a two-electron oxidation of the phenolic group according to an ECE mechanism resulting in the ultimate formation of an observable phenoxylium cation. After reaction of the latter with traces of water and subsequent internal electron transfer, the corresponding calix[4]-monoquinones are formed. (c) 2006 Elsevier B.V. All rights reserved.
机译:通过电化学和光谱技术研究了25,27-二丙氧基-26-羟基-28-苯甲酰氧基杯[4]芳烃1和25,27-二苄基-26-羟基-28-苯甲酰氧基杯[4]芳烃2在二氯甲烷中的阳极氧化。 。对于两者而言,总反应是根据ECE机理对酚基进行双电子氧化,最终形成可观察到的苯氧基阳离子。在后者与痕量水反应并随后进行内部电子转移后,形成相应的杯[4]-单醌。 (c)2006 Elsevier B.V.保留所有权利。

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