Cycloaromatization of enediyne model compounds via a reaction cascade triggered by hydrolysis of the α-alkynylmalonates
作者:Masayuki Shibuya、Masakazu Wakayama、Yoshimitsu Naoe、Tadaaki Kawakami、Katsuya Ishigaki、Hisao Nemoto、Hisashi Shimizu、Yoshimitsu Nagao
DOI:10.1016/0040-4039(95)02285-6
日期:1996.2
Diethyl α-methoxy-α-alkynylmalotate derivatives of cis-enediynes were synthesized and they produced toluenebiradicals via the reaction cascade triggered by ester hydrolysis. Deuterium labeling studies suggested that the reaction involved the self quenching process by fairly fast disproportionation of toluene biradicals producing zwitterionic species.
的二乙基α甲氧基α-alkynylmalotate衍生物顺-enediynes合成并且由它们制成toluenebiradicals经由通过酯水解触发的反应级联。氘标记研究表明,该反应通过产生两性离子物质的甲苯双自由基的相当快速的歧化而涉及自猝灭过程。