Redox Condensations of <i>o</i>-Nitrobenzaldehydes with Amines under Mild Conditions: Total Synthesis of the Vasicinone Family
作者:Oleg I. Afanasyev、Evgeniya Podyacheva、Alexander Rudenko、Alexey A. Tsygankov、Maria Makarova、Denis Chusov
DOI:10.1021/acs.joc.0c00794
日期:2020.7.17
A totalsynthesis of the vasicinone family of natural products from bulk chemicals was developed. Reductive condensation of o-nitrobenzaldehydes with amines utilizing iron pentacarbonyl as a reducing agent followed by subsequent oxidation leads to a great variety of polycyclic nitrogen-containing heterocycles under mild conditions. Enantiomerically pure vasicinone, rutaecarpine, isaindigotone, and