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Australian Journal of Chemistry Australian Journal of Chemistry Society
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Studies on the Enantioselective Synthesis of Carbazolones as Intermediates in Aspidosperma and Kopsia Alkaloid Synthesis*

Christopher J. Gartshore A and David W. Lupton A B
+ Author Affiliations
- Author Affiliations

A School of Chemistry, Monash University, Clayton, Vic. 3800, Australia.

B Corresponding author. Email: david.lupton@monash.edu

Australian Journal of Chemistry 66(8) 882-890 https://doi.org/10.1071/CH13287
Submitted: 3 June 2013  Accepted: 5 July 2013   Published: 12 August 2013

Abstract

Two strategies for the assembly of homochiral carbazolones have been investigated. The first exploited desymmetrisation of 1,3-cyclohexadione derivatives however this failed to deliver satisfactory outcomes. An orthogonal route exploiting palladium catalysed decarboxylative allylation of racemic carbazolone β-ketoesters has been developed. Herein we report full details on the development of this reaction and clarify apparent discrepancies between our preliminary reports and those of Shao.


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