Transmission of polar substituent effects through the bicyclo[2.2.2]octane ring system as monitored by fluorine-19 NMR shifts: 19F NMR study of 10-substituted 9-fluorotriptycenes and 4-substituted-4'-fluorobibicyclo[2.2.2]octanes
We developed the novel one‐pot synthetic method of substituted triptycenes by the reaction of ynolates and arynes. This four‐step process involves three cycloadditions and electrocyclic ring opening of the strained Dewar anthracene. Each of the three related but structurally distinct classes of nucleophiles (ynolate, enolate, and anthracenolate) reacts with o‐benzyne in the same predictable manner
Synthesis of 9-Hydroxytriptycenes Bearing a Functionalized Substituent at the C-10 Position through a Triple Cycloaddition Reaction of Ynolates Derived from 2,6-Di-<i>tert</i>-butylphenyl Esters
作者:Jun Sun、Takayuki Iwata、Mitsuru Shindo
DOI:10.1246/cl.200412
日期:2020.9.5
Herein, we report the synthesis of various 9-hydroxytriptycenes bearing a functionalized substituent at the C-10 position through a one-pot triple cycloadditionreaction of ynolates with arynes, fo...