Visible-light-induced mild, transition metal, base, and photocatalyst-free green protocol has been developed for the synthesis of tryptanthrin and its derivatives. The present reaction is compatible with a wide range of substrates with good to high yields. Further, a novel synthetic transformation of tryptanthrin derivatives has been achieved by the decarboxylative addition of cyanoacetic acid for
已开发出可见光诱导的温和、过渡
金属、碱和无光催化剂的绿色方案,用于
色胺酮及其衍
生物的合成。本反应与范围广泛的底物相容,产率从好到高。此外,首次通过
氰乙酸的脱羧加成实现了
色胺酮衍
生物的新合成转化。该反应通过可见光诱导的底物和
氧气之间的单电子转移进行,然后在不使用外部光催化剂的情况下进行分子内环化。