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Nucleophilic Attack at the Central Carbon Atom of (π-Allyl)palladium Complexes: Formation of α-Cyclopropyl Esters

✍ Scribed by Prof. H. Martin R. Hoffmann; Andreas R. Otte; Andreas Wilde

Publisher
John Wiley and Sons
Year
1992
Tongue
English
Weight
376 KB
Volume
31
Category
Article
ISSN
0044-8249

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✦ Synopsis

48 h gave the saturated silanes 21,23, and 25 in greater than 90 % yields. Exceptionally high diastereoselectivities (> 500: 1) were noted in all cases. No desilylation was observed under these conditions.

Table . Directed hydrogenation of y-hydroxyvinylsilanes. The substrate was treated with 5 mol % of the catalyst 1 in CH,CI, for 24-48 h at 103 x lo5 Pa.

Substrate

Product Yield [%] [a] (syn:anti ratio)

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