reductive cascade approach to the efficient construction of diastereodivergent cores embedded in podophyllum lignans is developed for the first time. Their gram-scale access paved the way for unified syntheses of naturally occurring podophyllotoxin and other members.
A two-step access to fused-/spiro-polycyclic frameworks <i>via</i> double Heck cascade and acid-driven processes
作者:Komal Goel、Gedu Satyanarayana
DOI:10.1039/d3ob01112g
日期:——
This report illustrates the rapid construction of two divergent classes of polycyclic frameworks, benzo[a]fluorenones and spiro-chromenone indenes, via a double Heck cascade and an acid-driven cyclization from easily accessible precursors.