## Abstract For Abstract see ChemInform Abstract in Full Text.
Competitive intramolecular Diels-Alder reaction and intramolecular coplanar cycloamination of 3-(3-butynylthio)-1,2,4-triazin-5-ones
β Scribed by Taylor, Edward C.; Pont, Joseph L.; Van Engen, Donna; Warner, John C.
- Book ID
- 127296334
- Publisher
- American Chemical Society
- Year
- 1988
- Tongue
- English
- Weight
- 618 KB
- Volume
- 53
- Category
- Article
- ISSN
- 0022-3263
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π SIMILAR VOLUMES
Inverse electron-demand Diels-Alder reactions of 1,2,4-triazines, where the dienophile is present in a sidechain tethered to the azadiene, can proceed with remarkable facility, leading to a variety of condensed pyridines (Scheme 1). Several recent publications from our laboratory have served to illu
Syntheses of several 6,6,6-tricyclic condensed pyridines and pyrazines utilizing intramolecular Diels-Alder reactions of 1,2,4-triazines with alkyne and nitrile dienophiles are detailed. The cyclizations are facilitated by the presence 01 conformationally restrictive planar aromatic rings in the cha