Jean-Claude Richer

Essais d'analyse conformationnelle de cyclopentanols et de germacyclopentanols

Abstract The NMR spectra of cyclopentanols and germacyclopentanols have been recorded in the presence of Pr(DPM) 3 and analyzed. Using the induced chemical shifts and the coupling constants, preferred conformations are proposed for the cyclanols.

Stéréochimie de l'addition homolytique de l'acide thioacétique a des dérivés méthylènes cyclohexaniques

The stereochemistry of the homolytic addition of thioacetic acid to 4-tert-butyl-2,2-dimethyl-1-methylenecyclohexane, to 3,3,5-trimethyl-1-methylenecyclohexane, to β -pinene and, for comparison pur...

Sur la réduction par les hydrures complexes d'éthers énoliques dérivés de formyl-2 cyclanones. III. Ethers dérivés de la formyl-2 diméthyl-6,6 cyclohexanone

The reduction of the O- and S-butylether derived from the 2-hydroxymethylene-6,6-dimethylcyclohexanone yields, in addition to the expected unsaturated aldehyde, 2-methylene-6,6-dimethylcyclohexanol.