Modulation of the coordination geometries of NCN and NCNC Rh complexes for ambidextrous chiral catalysts.
Jun-Ichi ItoTakahiro IshiharaTakaki FukuokaSiti Rokiah Binti Mat NapiHajime KameoHisao NishiyamaPublished in: Chemical communications (Cambridge, England) (2019)
A chirality switch between novel NCN pincer Rh complexes and a related double cyclometalated NCNC Rh complex containing secondary amino groups is described. Their catalytic abilities were determined in asymmetric alkynylation of ethyl trifluoropyruvate, and the change in the coordination geometry of the Rh catalysts affected the stereochemistry of the products.