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Regioselective syntheses of polycyclic compounds by carbanion-mediated polycyclisation of olefins.

โœ Scribed by A. Krief; P. Barbeaux

Book ID
104225418
Publisher
Elsevier Science
Year
1991
Tongue
French
Weight
255 KB
Volume
32
Category
Article
ISSN
0040-4039

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โœฆ Synopsis

This paper reports straightforward syntheses of l-aryl-bicycle-[n. 1.01~alkanes, laryl-bicycle-[3.3.0]-alkanes and of 1-phenyl-1,4-dimethyl-cyclopentane from unsaturated benzylselenides which involve the organolithiums-mediated cyclisation of olefins and poly-olefins.

๐Ÿ“œ SIMILAR VOLUMES

Regioselective alkylation and olefinatio
Regioselective alkylation and olefination of allylic carbanion stabilized by two different heteroatoms: phosphorus and silicon
โœ Bum Sung Lee; Jun Mo Gil; Dong Young Oh ๐Ÿ“‚ Article ๐Ÿ“… 2001 ๐Ÿ› Elsevier Science ๐ŸŒ French โš– 56 KB

Treatment of allylphosphonate with LiHMDS, followed by successive addition of chlorotrimethylsilane and carbonyl reagent, afforded dienylsilanes in good yields. 3-Substituted dienylsilanes were obtained by alkylation and olefination of allylic carbanion of 3-trimethylsilylallylphosphonates.