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ChemInform Abstract: I2—PPh3 Mediated Spiroannulation of Unsaturated β‐Dicarbonyl Compounds. The First Synthesis of (.+‐.)‐Negundoin A. Issue 9 (4th March 2014)
Record Type:
Journal Article
Title:
ChemInform Abstract: I2—PPh3 Mediated Spiroannulation of Unsaturated β‐Dicarbonyl Compounds. The First Synthesis of (.+‐.)‐Negundoin A. Issue 9 (4th March 2014)
Main Title:
ChemInform Abstract: I2—PPh3 Mediated Spiroannulation of Unsaturated β‐Dicarbonyl Compounds. The First Synthesis of (.+‐.)‐Negundoin A.
<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>Unsaturated β‐dicarbonyl compounds, e.g. (I), (III)/(VI), (VIII), and (X) undergo intramolecular cyclization by reaction with a catalytic amount of I<sub>2</sub>—PPh<sub>3</sub> affording spiro enol ether derivatives with complete regio‐ and stereoselectivity.</p> </abstract>