CHEMOSPECIFICITY IN ARYLATIONS OF δ- AND γ-KETOCARBOXYLIC ACIDS WITH P<sub>2</sub>O<sub>5</sub>–MsOH, TfOH, AND RELATED ACIDIC MEDIA
作者:Noriyuki Yonezawa、Masayuki Koike、Asami Kameda、Shin Naito、Tetsuo Hino、Katsuya Maeyama、Tomiki Ikeda
DOI:10.1081/scc-120013730
日期:2002.1.1
Remarkable contrast between chemospecificities in acid-mediated arylation of δ- and γ-ketocarboxylic acids was revealed: in the presence of P2O5–MsOH, TfOH, PPA, and MsOH, arylation of δ-ketocarboxylic acid 1A with arenes takes place at the carboxycarbonyl carbon, while that of γ-ketocarboxylic acid 1B takes place at the ketone carbonyl carbon, specifically.
摘要揭示了酸介导的 δ-和 γ-酮羧酸芳基化的化学特异性之间的显着对比:在 P2O5-MsOH、TfOH、PPA 和 MsOH 存在下,δ-酮羧酸 1A 与芳烃的芳基化发生在羧基羰基碳,而 γ-酮羧酸 1B 发生在酮羰基碳上,特别是。