✦ LIBER ✦

Single-Step Construction of a Nine-Membered Carbocycle by a New [4+4+1] Cycloaddition

✍ Scribed by Masahiro Murakami; Kenichiro Itami; Yoshihiko Ito

Publisher: John Wiley and Sons
Year: 1998
Tongue: English
Weight: 114 KB
Volume: 37
Category: Article
ISSN: 0044-8249
DOI: 10.1002/(sici)1521-3773(19981231)37:24<3418::aid-anie3418>3.0.co;2-r

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✦ Synopsis

A palladium catalyst serves as a template for the assembly of a nine-membered carbocycle from two molecules of vinylallene and one molecule of carbon monoxide [Eq. (a)]. This unprecedented [4+4+1] cycloaddition is in marked contrast to the [4+1] cycloaddition mediated by rhodium(I) catalysts.

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