TY - JOUR
T1 - Diastereo- and enentioselective cyclopropanation of alkenes catalyzed by ruthenium-Schiff-base complexes
AU - Jin, W.
AU - Nguyen, SonBinh
PY - 1999/12/1
Y1 - 1999/12/1
N2 - A series of ruthenium complexes incorporating ″salen-type″ Schiff-base ligands were prepared and used for alkene cyclopropanation with high trans/cis ratio and high enantioselectivity. Solution NMR and XRD studies show that depending on the ligand characteristic, the metal complex adopts a cis or trans coordination mode, reflecting the catalytic activity in the cyclopropanation reaction. The presence of a potential catalytic intermediate, a metallocarbene species, in solution state was determined. Effects of ligand substituent on the diastereo- and enantioselective cyclopropanation was discussed. Original is an abstract.
AB - A series of ruthenium complexes incorporating ″salen-type″ Schiff-base ligands were prepared and used for alkene cyclopropanation with high trans/cis ratio and high enantioselectivity. Solution NMR and XRD studies show that depending on the ligand characteristic, the metal complex adopts a cis or trans coordination mode, reflecting the catalytic activity in the cyclopropanation reaction. The presence of a potential catalytic intermediate, a metallocarbene species, in solution state was determined. Effects of ligand substituent on the diastereo- and enantioselective cyclopropanation was discussed. Original is an abstract.
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M3 - Comment/debate
AN - SCOPUS:0033369288
VL - PART 1
JO - ACS National Meeting Book of Abstracts
JF - ACS National Meeting Book of Abstracts
SN - 0065-7727
T2 - Proceedings of the 1999 218th ACS National Meeting
Y2 - 22 August 1999 through 26 August 1999
ER -
Duration: Aug 22 1999 → Aug 26 1999