ESR spin-trap study of the radicals present during the thermolysis of some novel alkyl peroxy esters
作者:Pierre G. Mekarbane、Brian J. Tabner
DOI:10.1002/1097-458x(200010)38:10<845::aid-mrc746>3.0.co;2-v
日期:2000.10
The thermolysis of four alkylperoxy esters was undertaken at various temperatures between 300 and 353 K and the radicals generated were trapped employing DMPO, DEPMPO, PBN‐d14 and TTBNB. The adducts of a range of second‐generation carbon‐centred radicals, formed via decarboxylation of the acyloxyl moiety, including those of the 2,4,4‐trimethylpentyl and hept‐3‐yl radicals, were also observed. The co‐generated
四种烷基过氧酯的热解在 300 到 353 K 之间的不同温度下进行,产生的自由基被 DMPO、DEPMPO、PBN-d14 和 TTBNB 捕获。还观察到通过酰氧基部分脱羧形成的一系列第二代碳中心自由基的加合物,包括 2,4,4-三甲基戊基和庚-3-基自由基的加合物。在叔丁基过氧化 3,3,5-三甲基己酸酯、叔戊基过氧化 2-乙基己酸酯和双官能过氧化物 2,5-二甲基-2,5-双(2 -乙基己酰基过氧)己烷,以及在这些叔烷氧基自由基的 β 断裂后形成的一系列第二代碳中心自由基,都被成功捕获。版权所有 © 2000 John Wiley & Sons, Ltd.