43061-34-3Relevant academic research and scientific papers
Enantiomerically pure bis(phosphanyl)carbaborane(12) compounds
Bauer, Sebastian,Tschirschwitz, Steffen,Loennecke, Peter,Frank, Rene,Kirchner, Barbara,Clarke, Matthew L.,Hey-Hawkins, Evamarie
experimental part, p. 2776 - 2788 (2009/12/02)
Enantiomerically pure (RP,RP)- and (R P,SP)-1,2-bis[1-adamantyloxy-( - )-menthyloxyphosphanyl]- closo-dicarbaborane(12), 1,2-bis[bis( - )-menthyloxyphosphanyl]-closo- dicarbaborane(12) and 1,2-bis [bis (4-tert-butylphenyloxy)phosphanyl] -closo-dicarbaborane(12) were synthesised by the reaction of dilithiated l,2-dicarba-closo-dodecaborane(12) with two equivalents of the corresponding chlorophosphite. The phosphonites are stable towards epimerisation, oxygen, and water. P...P through-space coupling was observed, and the 3JPP coupling constants were determined by spectral simulation and DFT calculations. Late transition-metal complexes with molybdenum, and rhodium, were prepared to study the coordination properties of the bis(phosphanyl)carbaborane(12) compounds. Catalytic properties of various rhodium complexes were investigated in homogeneous catalytic hydroformylation reactions with, various olefins.
