New strategy to construct fused/bridged/spiro carbocyclic scaffolds based on the design of novel 6-C synthon precursor
作者:Jia Liu、Xi Wang、Chang-Liang Sun、Bi-Jie Li、Zhang-Jie shi、Min Wang
DOI:10.1039/c0ob00660b
日期:——
In this article we report a new strategy to build fused/spiro/bridged carbocyclic systems with a novel 6-C synthon from readily available diallyl diacetates through the sequential Pd-catalyzed double allyl alkylation and Diels–Alder annulation. Further exploration on the application of this strategy can construct useful complex scaffolds.
Synthesis of spiro-indanes by cycloaddition strategy
作者:Sambasivarao Kotha、Ethirajan Manivannan
DOI:10.1039/b106280h
日期:2001.10.11
Various 2,2′-spirobiindane-1,3-dione derivatives which are useful precursors for the synthesis of unsymmetrical benzoannelated fenestranes are reported via [2+2+2] and [4+2] cycloaddition reactions as key steps.