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Inter- and Intramolecular Hetero Diels-Alder Reactions, 49[1] Kinetics and Selectivity of the Intramolecular Hetero Diels-Alder Reaction of 1-Oxa-1,3-butadienes using a Benzylidenebarbituric Acid Derivative Effect of Pressure, Temperature, and Solvent

✍ Scribed by Buback, Michael ;Gerke, Kerstin ;Ott, Christian ;Tietze, Lutz F.


Publisher
Wiley (John Wiley & Sons)
Year
1994
Tongue
English
Weight
735 KB
Volume
127
Category
Article
ISSN
0009-2940

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πŸ“œ SIMILAR VOLUMES


Inter- and intramolecular hetero Diels-A
✍ Buback, Michael ;Abeln, Johannes ;HΓΌbsch, Thomas ;Ott, Christian ;Tietze, Lutz F πŸ“‚ Article πŸ“… 1995 πŸ› John Wiley and Sons 🌐 English βš– 288 KB

Hetero Diels-Alder reactions, intramolecular / High-pressure reactions / Diastereoselectivity / Pyrans / 1 -Oxa-l,3-butadiens / Isoxazolones The intramolecular hetero Diels-Alder reaction of the benzylidene-isoxazolone 3 giving the adducts 4 and 5 is studied in dichlormethane under high pressure up

Inter- and intramolecular hetero Diels-A
✍ Tietze, Lutz F. ;HΓΌbsch, Thomas ;Ott, Christian ;Kuchta, Gabriele ;Buback, Micha πŸ“‚ Article πŸ“… 1995 πŸ› 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

Inter- and intramolecular hetero diels-a
✍ Tietze, Lutz F. ;Utecht, Jens πŸ“‚ Article πŸ“… 1992 πŸ› Wiley (John Wiley & Sons) 🌐 English βš– 542 KB

Azabutadienes f Isoxazoles f Tetrahydropyridines 1 Diels-Alder reactions / Sequential transformations Condensation of aldehydes 1 ae with 5-amino-3-methylisoxazole (4) gives the corresponding imines 5a-e with a 2-aza-1,3-butadiene moiety, which cyclize selctively, e.g. 5a to form the trans-fused tet