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|Title:||Synthesis of spiro-annulated cyclobutane derivatives through ketene [2+2] cycloaddition and ring-rearrangement metathesis|
|Abstract:||Herein is reported a concise synthesis of spiro-annulated cyclobutane tetracyclic and pentacyclic derivatives by ketene addition, and ring-rearrangement metathesis (RRM) as key steps, starting with commercially available norbornadiene and dicyclopentadiene. The tetracyclic spiro-derivative contains a [5/5/4] core unit, which is the key building block to angular triquinanes synthesis. Whereas, the pentacyclic spiro-derivative contains a basic core skeleton of presilphiperfolanes, and other sesquiterpenoids.|
|Appears in Collections:||IJC-B Vol.59B(12) December 2020]|
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|IJCB 59B(12) 1875-1880.pdf||Main Article||222.47 kB||Adobe PDF||View/Open|
|IJCB 59B(12) 1875-1880_Suppl Data.pdf||Supplementary Data||2.61 MB||Adobe PDF||View/Open|
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