Organic & biomolecular chemistry
Synthesis of naphth[2,1-a]azulenes via [8 + 2] cycloaddition of 2H-cyclohepta[b]furan-2-ones, and their reactivity, optical, and structural properties.
Taku Shoji, Akari Yamazaki, Miku Yoshida, Masafumi Yasunami Deceased, Shigeki Mori, Tetsuo Okujima, Takumi Kamayachi, Ikumi Uchiyama, Ryuta Sekiguchi, Shunji Ito
Published: 202510.1039/d5ob01492a
Abstract
A concise and efficient synthetic route to naphth[2,1-a]azulenes was developed via [8 + 2] cycloaddition of 2H-cyclohepta[b]furan-2-ones with enamines or a silyl enol ether derived from α-tetralones. A diverse array of functionalized naphth[2,1-a]azu…
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