Rhodium complexes with planar-chiral cyclopentadienyl ligands: synthesis from tert-butylacetylene and catalytic performance in C–H activation of arylhydroxamates

Abstract

Rhodium complexes with various planar-chiral cyclopentadienyl ligands were synthesized in 1–3 steps by the unusual 2 + 2 + 1-cyclotrimerization of tert-butylacetylene.

Planar-chiral arene ruthenium complexes: synthesis, separation of enantiomers, and application for catalytic C–H activation

“…We noticed that it is possible to synthesize racemic ruthenium complexes from trisubstituted arenes and then to separate them into enantiomers by using chiral auxiliary ligands. [18][19][20] Recently, Wang et al 21 as well as our group [22][23][24][25][26] have used a similar approach for the synthesis of planar chiral rhodium catalysts.…”