Synthesis 2016; 48(19): 3279-3286
DOI: 10.1055/s-0035-1561666
paper
© Georg Thieme Verlag Stuttgart · New York

Formation of Carbon Quaternary Stereogenic Center in Acyclic Systems via a Sequence of Carbometalation–Intramolecular Cyclization–Silicon Activation

Maya Preshel-Zlatsin
The Mallat Family Laboratory of Organic Chemistry, Schulich Faculty of Chemistry and The Lise Meitner-Minerva Center for Computational Quantum Chemistry, Technion-Israel Institute of Technology, Technion City, Haifa 32000, Israel   eMail: chilanm@tx.technion.ac.il
,
Fa-Guang Zhang
The Mallat Family Laboratory of Organic Chemistry, Schulich Faculty of Chemistry and The Lise Meitner-Minerva Center for Computational Quantum Chemistry, Technion-Israel Institute of Technology, Technion City, Haifa 32000, Israel   eMail: chilanm@tx.technion.ac.il
,
Guillaume Eppe
The Mallat Family Laboratory of Organic Chemistry, Schulich Faculty of Chemistry and The Lise Meitner-Minerva Center for Computational Quantum Chemistry, Technion-Israel Institute of Technology, Technion City, Haifa 32000, Israel   eMail: chilanm@tx.technion.ac.il
,
Ilan Marek*
The Mallat Family Laboratory of Organic Chemistry, Schulich Faculty of Chemistry and The Lise Meitner-Minerva Center for Computational Quantum Chemistry, Technion-Israel Institute of Technology, Technion City, Haifa 32000, Israel   eMail: chilanm@tx.technion.ac.il
› Institutsangaben
Weitere Informationen

Publikationsverlauf

Received: 13. April 2016

Accepted after revision: 20. Mai 2016

Publikationsdatum:
10. Juni 2016 (online)


Preview

Dedicated to the memory of Jean Normant, a wonderful teacher and truly inspirational colleague

Abstract

The diastereoselective carbometalation reaction of cyclopropenyl esters followed by reaction with acylsilanes provides γ-silylated lactones that undergo a ‘sila-Grob’ fragmentation to give pyrone enolates as a new source of acyclic δ-diketones, δ-keto acid, and δ-keto ester derivatives possessing a quaternary stereocenter.