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[4+2]- and [2+4]-cycloaddition processes of 4,5-dicyanopyridazine with 2,3-dimethylbuta-1,3-diene

✍ Scribed by Rodolfo Nesi; Donatella Giomi; Stefania Turchi; Paola Paoli

Publisher: Elsevier Science
Year: 1994
Tongue: French
Weight: 390 KB
Volume: 50
Category: Article
ISSN: 0040-4020
DOI: 10.1016/s0040-4020(01)85385-0

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✦ Synopsis

Ababwck The title compnds afforded under mlathly mild conditions the polycyclic systems 3% 4, and 5 thmugb altemative collwmitant cycloadditions; the mactivily ofthe wdazinc syxtem wascri~innucnccdbythepnsavxofmcthyl~atthc3and6~ti~.Thesllctond3r andthestenochemistryofswemestablishedbyx-ray-.

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