DOI: 10.1039/d3qo01070h ISSN:
6-Exo-dig cyclization/dearomatization cascade towards N–O fused spiro polyheterocycles
Zhenwei Lv, Yan Li, Erik V. Van der Eycken, Lingchao Cai, Liangliang Song- Organic Chemistry
A hypervalent iodine-mediated cascade cyclization of alkyne-tethered N-alkoxybenzamides for the construction of structurally novel N–O fused spiro polyheterocycles was developed.