✦ LIBER ✦

Asymmetric synthesis of the C-26-C-32 tetrahydropyran — moiety of Swinholide A by hetero-Diels-Alder reaction

✍ Scribed by Johann Mulzer; Frank Meyer; Jürgen Buschmann; Peter Luger

Publisher: Elsevier Science
Year: 1995
Tongue: French
Weight: 189 KB
Volume: 36
Category: Article
ISSN: 0040-4039
DOI: 10.1016/0040-4039(95)00576-x

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

Inter- and intramolecular hetero-Diels-A

Inter- and intramolecular hetero-Diels-Alder reactions, 32. Iridoids, 26. Synthesis of bridged homoiridoids from secologanin by tandem-Knoevenagel-hetero-Diels-Alder reactions

✍ Tietze, Lutz F. ;Bärtels, Christoph 📂 Article 📅 1991 🏛 John Wiley and Sons 🌐 English ⚖ 634 KB

## Abstract The tandem‐Knoevenagel‐hetero‐Diels‐Alder reaction of the chiral enantiomerically pure monoterpene glucoside secologanin (1) with 1,3‐dicarbonyl compounds 6a–d and the analogous compounds 11a–b in the presence of ethylenediammonium diacetate as catalyst leads to the bridged cycloadducts

Synthesis of unsaturated lactone moietie

Synthesis of unsaturated lactone moieties by asymmetric hetero Diels–Alder reactions with binaphthol-titanium complexes

✍ Monika Quitschalle; Mathias Christmann; Ulhas Bhatt; Markus Kalesse 📂 Article 📅 2001 🏛 Elsevier Science 🌐 French ⚖ 65 KB

Toward the Total Synthesis of Phorboxazo

Toward the Total Synthesis of Phorboxazole A: Synthesis of an Advanced C4—C32 Subunit Using the Jacobsen Hetero Diels—-Alder Reaction.

✍ Ian Paterson; Chris A. Luckhurst 📂 Article 📅 2003 🏛 John Wiley and Sons ⚖ 65 KB 👁 1 views

Toward the total synthesis of phorboxazo

Toward the total synthesis of phorboxazole A: synthesis of an advanced C4–C32 subunit using the Jacobsen hetero Diels–Alder reaction

✍ Ian Paterson; Chris A. Luckhurst 📂 Article 📅 2003 🏛 Elsevier Science 🌐 French ⚖ 242 KB

The tetrahydropyranone 3, representing a pentacyclic C 4 -C 32 segment of the phorboxazoles, was obtained by a complex hetero Diels-Alder (HDA) coupling performed between the 2-siloxydiene 23 and the oxazole aldehyde 4, mediated by the chiral tridentate Cr(III) catalyst 14. In preliminary studies, t

ChemInform Abstract: Synthesis of Unsatu

ChemInform Abstract: Synthesis of Unsaturated Lactone Moieties by Asymmetric Hetero Diels—Alder Reactions with Binaphthol-Titanium Complexes.

✍ Monika Quitschalle; Mathias Christmann; Ulhas Bhatt; Markus Kalesse 📂 Article 📅 2010 🏛 John Wiley and Sons ⚖ 29 KB 👁 2 views

Asymmetric hetero-Diels-Alder reactions.

Asymmetric hetero-Diels-Alder reactions. Mechanism of the reaction of alkenyloxazolines with isocyanates

✍ Mark C. Elliott; Elbertus Kruiswijk; David J. Willock 📂 Article 📅 1998 🏛 Elsevier Science 🌐 French ⚖ 309 KB

Diastereomerically pure oxazolo[3, pyrimidines can be readily prepared by the reaction of alkenyloxazolines with isocyanates. These compounds undergo epimerisation upon prolonged heating. The mechanism of this transformation has been investigated experimentally and computationally.