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A diastereoselective synthesis of benzopyrans using a novel intramolecular Nicholas reaction in the key cyclisation step

✍ Scribed by John Berge; Stephen Claridge; Alastair Mann; Christophe Muller; Elizabeth Tyrrell

Publisher
Elsevier Science
Year
1997
Tongue
French
Weight
130 KB
Volume
38
Category
Article
ISSN
0040-4039

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✦ Synopsis

A novel intramolecular cyclisation reaction between an organocobalt stabilised cation and a trisubstiluted alkene was accomplished to afford a new family of benzopyran derivatives.

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