/. Introduction and Genera! Remarks Marine dinoflagellates are attracting more and more
attention as a source of compounds with unique structures and useful biological activity. 1 …

This comprehensive text presents a critical discussion of the scopes and limitations of
various organic synthetic methodologies that are available for performing asymmetric …

Natural products containing a medium ring ether are widespread, and show a fascinating
spectrum of structure and biological activity. The halogenated enyne laurencin (1) and the …

A review on the intramolecular coiodination of alkenes with internal oxygenated
nucleophiles (alkenols, unsaturated ethers, carboxylic acids and derivatives) is presented …

A new synthetic strategy for the regio and stereospecific synthesis of meso β-alkoxy-
substituted oxepanes involving iodine promoted transannular ring expansion of 9 …

The transformation of alkyl halides into alcohols via a two-step process based on the
reaction with DMF catalyzed by Ag (I) salts followed by acid or basic hydrolysis of the …

L'ion nitrosonium généré in situ par réaction du t-BuNO2 avec le BF3⊙ OEt2 est un agent
d'oximinylation efficace pour les éthers énoliques dérivés de spirocétals stéroïdaux. On a …

The present work deals with the synthesis of the 10-oxabicyclo [5.2. 1] decane framework
present in bioactive natural products like physalins, with potential as antitumor agents. This …

Abstract C‐3 derivatives of 6‐hydroxy‐2, 7‐dimethyl‐11‐oxatricyclo [6.2. 1.02, 6] undecan‐4‐
one reacted with lead tetraacetate (LTA) and iodine to afford, in good yield, 1, 7 …

We contend that the Polytope model utilized by IUPAC to specify stereoisomerism for
species MLn with n> 3 should be universally applied. Such application recently led to the …