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Rhodium-Catalyzed Intermolecular [4+2] Cycloaddition of Unactivated Substrates

✍ Scribed by Masahiro Murakami; Minoru Ubukata; Kenichiro Itami; Yoshihiko Ito

Publisher: John Wiley and Sons
Year: 1998
Tongue: English
Weight: 102 KB
Volume: 37
Category: Article
ISSN: 0044-8249
DOI: 10.1002/(sici)1521-3773(19980904)37:16<2248::aid-anie2248>3.0.co;2-1

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✦ Synopsis

No electron-withdrawing or electron-releasing substituents are necessary for the substrates in the rhodium-catalyzed [4+2] cycloaddition reaction between a vinylallene and an ordinary alkyne under mild conditions [Eq. (1)]. The use of the strongly electron-accepting P[OCH(CF ) ] ligand affords the optimal rhodium catalyst. cod = 1,5-cyclooctadiene.

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