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A Palladium-Catalyzed Sequence of Allylic Alkylation and Hiyama Cross-Coupling: Convenient Synthesis of 4-(α-Styryl) γ-Lactones.

✍ Scribed by Maxime Vitale; Guillaume Prestat; David Lopes; David Madec; Giovanni Poli

Publisher
John Wiley and Sons
Year
2007
Weight
29 KB
Volume
38
Category
Article
ISSN
0931-7597

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✦ Synopsis

Abstract

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Phosphine-Free Palladium-Catalyzed Allen
Phosphine-Free Palladium-Catalyzed Allene Carbopalladation/Allylic Alkylation Domino Sequence: A New Route to 4-(α-Styryl) γ-Lactams
✍ Claire Kammerer; Guillaume Prestat; David Madec; Giovanni Poli 📂 Article 📅 2009 🏛 John Wiley and Sons 🌐 English ⚖ 244 KB 👁 1 views

## Abstract **Free to decide**: Various 4‐(α‐styryl) γ‐lactams are synthesized in 61–88 % yield by a phosphine‐free palladium‐catalyzed carbopalladation/allylic alkylation domino sequence (see scheme). The cyclization is totally regio‐ and diastereoselective in favor of the 3,4‐__trans__‐disubstitu