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Methyl 2,3,4-tri- O -acetyl- d -glucopyranuronate reacts with phenols under Mitsunobu conditions to give β-phenylglucuronides. Improved yields are obtained with p -methyl and p -methoxyphenol by prior complexation to the chromium tricarbonyl residue, which serves to increase the acidity of the phenol.

When treated with potassium t-butoxide in dimethyl sulphoxide the chromium tricarbonyl complex of 3-(2-fluorophenyl)propan-1-ol underwent a rapid intramolecular nucleophilic substitution to give the corresponding complex of chroman, from which the heterocycle was obtained by oxidation with iodine. With metal alkoxides the chromium tricarbonyl complex of 2-(2-fluorophenyl)ethanol gave either mixtures (from which the product of intramolecular nucleophilic substitution was not isolated) or the products of intermolecular nucleophilic substitution.

Tricarbonyl(1,4-dichlorobenzene)chromium(O) and chlorobenzene(cyclopentadienyl)iron(II) hexaflurophosphate undergo nucleophilic substitution with sodium phenoxide to give tricarbonyl(4-chloro-1-phenoxybenzene)chromium(O) and phenoxybenzene(cyclopentadienyl)iron(II) hexaflurophosphate, respectively. In the former case, the second chlorine is subsequently displaced by methoxide, and this represents a potentially versatile synthesis of substituted diphenyl ethers. Neither of the complexes react with 2,6-dibromo-4-methylphenoxide, but both phenoxides add to substituted tricarbonylcyclohexadienyliumiron complexes to give neutral tricarbonyldieneiron(O) complexes.

L'addition de Diels Alder du butadiene-1,3 avec un naphtalene carbaldehyde conduit au squelette nor-19 podocarpene-12. On prepare une nor-19 podocarpene-13one-12 dont on etudie la structure cristalline. La lactonisation induite par l'iodure de trimethylsilane permet d'obtenir une nor-21 picrasanone-12 dont le noyau ABCD est precurseur des quassinoides