%0 Journal Article %T Influence of copper(II) acetate on Ni/AcOH-promoted 5-endo and 5-exo radical cyclisations of trichloroacetamides %+ Institut de Chimie des Substances Naturelles (ICSN) %+ Laboratoire de synthèse organique (DCSO) %A Cassayre, J. %A Dauge, D. %A Zard, Samir, Z. %< avec comité de lecture %@ 0936-5214 %J SYNLETT %I Georg Thieme Verlag %N 4 %P 471-474 %8 2000 %D 2000 %R 10.1055/s-2000-6556Journal articles %X Incorporation of Cu(OAc)2 as oxidant in Ni/AcOH-promoted 5-endo radical cyclisations of N-alkenyl-trichloroacetamides allows an interesting control of the oxidation level of the products, as illustrated by the conversion of 3 into either 4 or 5. In addition, allylic trichloroacetamides 13a-f under the same conditions underwent a 5-exo radical cyclisation-oxidation sequence leading to unsaturated hydroindolones, which represent valuable synthetic intermediates. %G English %L hal-00954902 %U https://polytechnique.hal.science/hal-00954902 %~ X %~ CNRS %~ X-DCSO %~ X-DEP %~ X-DEP-CHIM %~ ICSN %~ INC-CNRS %~ UNIV-PARIS-SACLAY %~ UNIV-PSUD-SACLAY %~ GS-HEALTH-DRUG-SCIENCES %~ TEST2-HALCNRS