[GRAPHICS]The easily prepared catalyst systems PdCl2, RhCl2(COD)(2), NiCl2. 6H(2)O, or Ni(COD)(2)/TPPTS have been found to form a C-C bond in organoaqueous medium. Intramolecular metallo-ene reactions have been efficiently realized. Metal selectivity has been discovered.
OPPOLZER, W.;GAUDIN, J. -M.;BEDOYA-ZURITA, M.;HUESO-RODRIGUEZ, J.;PAYNHAM+, TETRAHEDRON LETT., 29,(1988) N 37, C. 4709-4712
作者:OPPOLZER, W.、GAUDIN, J. -M.、BEDOYA-ZURITA, M.、HUESO-RODRIGUEZ, J.、PAYNHAM+
DOI:——
日期:——
Synthesis of nitrogen- or oxygen- containing ring systems by palladium-catalyzed intramolecular olefin allylations
Pd(PPh3)4-catalyzed cyclizations of N-allyl(crotyl, or 3-butenyl),N-butenyloxy derivatives and of an allyl(2-butenyloxy) ether give pyrrolidines, piperidines and a tetrahydrofuran in good yields. Hexahydroindoles and octahydroquinolines are thus obtained from the corresponding N-(2- or 3-butenyl),N-(4-acetoxy-2-cyclohexenyl) amides with excellent stereocontrol.