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Hetero-Diels—Alder Reactions of Ketones — A Challenge for Chemists

✍ Scribed by Karl Anker Joergensen

Publisher
John Wiley and Sons
Year
2004
Weight
48 KB
Volume
35
Category
Article
ISSN
0931-7597

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Inter- and intramolecular hetero Diels-A
Inter- and intramolecular hetero Diels-Alder reactions, 51. Intermolecular hetero Diels-Alder reactions of enamino ketones. Effect of high pressure on the kinetics and diastereoselectivity
✍ Tietze, Lutz F. ;Hübsch, Thomas ;Ott, Christian ;Kuchta, Gabriele ;Buback, Micha 📂 Article 📅 1995 🏛 John Wiley and Sons 🌐 English

## Abstract The hetero Diels‐Alder reaction of the enamino ketones 1b and 1c with ethyl vinyl ether (2) in dichloromethane to give the dihydropyrans 3b/4b and 3c/4c is studied at high pressure up to 5 kbar. The kinetics is measured by on‐line FT‐IR spectroscopy up to 3 kbar. The cycloadditions show