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Cycloadducts of ethene with 2(1H)-pyrazinones functionalisation and reduction to 2,5-diazabicyclo[2.2.2]octan-3-ones.

โœ Scribed by Patrick K. Loosen; Masoumeh F. Khorasani; Suzanne M. Toppet; Georges J. Hoornaert


Book ID
108374331
Publisher
Elsevier Science
Year
1991
Tongue
French
Weight
619 KB
Volume
47
Category
Article
ISSN
0040-4020

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[4+2] Cycloaddition of 2(1H)-pyrazinones
โœ Takehiko Nishio ๐Ÿ“‚ Article ๐Ÿ“… 1998 ๐Ÿ› Journal of Heterocyclic Chemistry ๐ŸŒ English โš– 273 KB

## Abstract The reaction of 2(1__H__)โ€pyrazinones 1 and 1,2,4โ€triazolineโ€3,5โ€diones 3 was investigated by comparing that of 1 with singlet oxygen. 2(1__H__)โ€Pyrazinones 1 reacted in Dielsโ€Alder fashion with 1,2,4โ€triazolineโ€3,5โ€diones 3 to afford [4+2]โ€adducts 4โ€“17 in high yields.