文献类型：期刊文献

英文题名：Wavelength-dependent photolyses of 2,5-dichloro-3,6-bis(dialkylamino)-[1,4]benzoquinone

作者：Shi, Min[1]; Yang, Wang-Gui[1]; Wu, Shuai[1]

机构：[1]E China Univ Sci & Technol, Shanghai 200237, Peoples R China

年份：2007

卷号：185

期号：2-3

起止页码：140

外文期刊名：JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY

收录：;EI(收录号：20242716582734);WOS:【SCI-EXPANDED(收录号:WOS:000243736600004)】；

语种：英文

外文关键词：benzoquinone; photolysis; wavelength-dependent

摘要：Photolysis of 2.5-dichloro-3,6-bis(dialkylamino)-[1,4]benzoquinone (1) at 254 nm or 300-500 nm produces the corresponding cyclized products (2) via the electron transfer-proton transfer sequence in a variety of solvents in quantitative yields within 10 min. In contrast, photolysis of 2,5dichloro-3,6-bis(dialkyl amino)-[1,4] benzoquinone (1) at > 500 nm light source affords the elimination products (3) in good yields via the delta-hydrogen abstraction. (c) 2006 Elsevier B.V. All rights reserved.