113427-15-9Relevant articles and documents
Rhodium(I)-Ctalyzed 'Metallo-Ene' Cyclizations/β-Eliminations
Oppolzer, Wolfgang,Fuerstner, Alois
, p. 2329 - 2337 (2007/10/02)
Octadienyl carbonates 5 provide cyclic 1,4-dienes 6 when treated with RhI complexes (1-10 mol-percent) at 80 deg C.Similar cyclization of cyclohexenyl acetate 8 affords cis-fused hexahydroindene 9.Analogues ring closures of nonadiene carbonate 10 yield preferably the cis-divinylpyrrolidine 11 with RhI catalysis but the trans-isomer 12 when catalyzed by Pd0.Azaoctadienyl carbonate 5a undergoes elimination with (5 mol-percent, 80 deg C) in MeCN giving acyclic triene 7.
134. Catalytic Intramolecular Palladium-Ene Reactions
Oppolzer, Wolfgang,Gaudin, Jean-Marc
, p. 1477 - 1481 (2007/10/02)
Pd(dba)2/PPh3- or Pd(PPh3)4-catalyzed cyclizations of acetoxy-dienes 2 -> 3 and 10 -> 11 gave 1-vinyl-2-methylidene-substituted cyclopentanes and cyclohexanes in high yield, consistent with a palladium-ene/β-elimination mechani