Alkyl Carbon–Oxygen Bond Cleavage of Aryl Alkyl Ethers by Iridium–Porphyrin and Rhodium–Porphyrin Complexes in Alkaline Media
Publication in refereed journal

香港中文大學研究人員
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其它資訊
摘要Alkyl C–O bond cleavage in aryl alkyl ethers was achieved with Rh(ttp)Cl (1a; ttp = 5,10,15,20-tetrakis(p-tolyl)porphyrinato dianion) together with competitive alkyl C–H bond activation in alkaline media. In contrast, selective alkyl C–O bond cleavage occurred with the iridium–porphyrin Ir(ttp)(CO)Cl (1b)/KOH. Mechanistic investigations indicate the coexistence of MI(ttp)− and M2II(ttp)2 (M = Rh, Ir) under basic conditions. With a weaker Rh(ttp)–Rh(ttp) bond, RhII(ttp)· metalloradical exists in an appreciable amount to cleave the alkyl C–H bond, competing with the alkyl C–O bond cleavage via RhI(ttp)−. In contrast, the more nucleophilic IrI(ttp)− cleaves the alkyl C–O bond exclusively.
出版社接受日期24.05.2017
著者Chen Chen, Kin Shing Chan
期刊名稱Organometallics
出版年份2017
月份9
日期25
卷號36
期次18
出版社American Chemical Society
出版地Washington DC USA
頁次3456 - 3464
國際標準期刊號0276-7333
語言美式英語
關鍵詞Alkyl Carbon−Oxygen Bond Cleavage, Iridium−Porphyrin, Rhodium−Porphyrin

上次更新時間 2021-18-01 於 01:49