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Asymmetric approach to the pentacyclic skeleton of Aspidosperma alkaloids via enantioselective intramolecular 1,3-dipolar cycloaddition of carbonyl ylides catalyzed by chiral dirhodium(II) carboxylates

✍ Scribed by Hisanori Nambu; Mayuka Hikime; Janagiraman Krishnamurthi; Megumi Kamiya; Naoyuki Shimada; Shunichi Hashimoto

Publisher: Elsevier Science
Year: 2009
Tongue: French
Weight: 387 KB
Volume: 50
Category: Article
ISSN: 0040-4039
DOI: 10.1016/j.tetlet.2009.03.142

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Corrigendum to “Enantioselective [2,3]-sigmatropic and [1,2]-Stevens rearrangements via intramolecular formation of allylic oxonium ylides catalyzed by chiral dirhodium(II) carboxylates”: [Tetrahedron Letters 42 (2001) 6361]

✍ Shinji Kitagaki; Yoshimasa Yanamoto; Hideyuki Tsutsui; Masahiro Anada; Makoto Na 📂 Article 📅 2001 🏛 Elsevier Science 🌐 French ⚖ 27 KB

In this paper, the authors describe the tandem oxonium ylide formation and [2,3]-sigmatropic rearrangement from 1b using Rh 2 (R-DDBNP) 4 (up to 62% ee).