Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5281662 | Tetrahedron Letters | 2008 | 4 Pages |
Abstract
Piperidinones with a 2-bromobenzyl substituent in the 5-position were subjected to a Heck coupling reaction with ethyl acrylate resulting in the highly functionalized cinnamates 9a-d. A subsequent deprotonation of the piperidinones using NaN(SiM3)2 in THF induced an intramolecular Michael addition of the enolate to the cinnamate part. In this way, a range of novel 2,6-methano-4H-4-benzazonines 10-13 were obtained. In each case, a separable mixture of endo/exo-diastereomers was obtained.
Graphical abstractA novel synthesis of 2,6-methano-4H-4-benzazonines is described.Download full-size image
Related Topics
Physical Sciences and Engineering
Chemistry
Organic Chemistry
Authors
Gedu Satyanarayana, Sven Müller, Martin E. Maier,