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Issue 8, 2014
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Synthesis of tetracyclic chromenones via platinum(II) chloride catalysed cascade cyclization of enediyne–enones

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Abstract

PtCl2 catalysed cascade cyclization of an enediyne–enone system to afford a tetracyclic chromenone is reported, which proceeds through two consecutive highly regioselective 6-endodig cyclizations in a single step with the formation of two new C–C bonds and two new rings in excellent yield. A mechanism for this transformation is proposed based on the isolated intermediates.

Graphical abstract: Synthesis of tetracyclic chromenones via platinum(ii) chloride catalysed cascade cyclization of enediyne–enones

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Publication details

The article was received on 20 Sep 2013, accepted on 27 Nov 2013 and first published on 28 Nov 2013


Article type: Paper
DOI: 10.1039/C3OB41911H
Citation: Org. Biomol. Chem., 2014,12, 1318-1327
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    Synthesis of tetracyclic chromenones via platinum(II) chloride catalysed cascade cyclization of enediyne–enones

    M. Sivaraman and P. T. Perumal, Org. Biomol. Chem., 2014, 12, 1318
    DOI: 10.1039/C3OB41911H

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