Oxidative Radical Skeletal Rearrangement Induced by Molecular Oxygen: Synthesis of Quinazolinones
作者:Yi-Feng Wang、Feng-Lian Zhang、Shunsuke Chiba
DOI:10.1021/ol4011745
日期:2013.6.7
Oxidative skeletal rearrangement of 5-aryl-4,5-dihydro-1,2,4-oxadiazoles into quinazolinones is induced by molecularoxygen (under a dry air atmosphere) that likely proceeds via transient iminyl radical species. Concise syntheses of biologically active quinazolinone derivatives were demonstrated using the present strategy.
Complementary Reactivity in Selective Radical Processes: Electrochemistry of Oxadiazolines to Quinazolinones
作者:Ho Seong Hwang、Eun Jin Cho
DOI:10.1021/acs.orglett.1c01676
日期:2021.7.2
Electrochemistry has recently emerged as a sustainable approach for efficiently generating radical intermediates utilizing eco-friendly electric energy. An electrochemical process was developed to transform 1,2,4-oxadiazolines under mild conditions. The electrochemical N–O bond cleavage at a controlled oxidation potential led to the selective synthesis of quinazolinone derivatives that could not be