437628-40-5Relevant academic research and scientific papers
Reactivity Enhancement for Chiral Dirhodium(II) Tetrakis (Carboxamidates)
Doyle, Michael P.,Hu, Wenhao,Phillips, Iain M.,Moody, Christopher J.,Pepper, Adrian G.,Slawin, Alexandra M. Z.
, p. 112 - 117 (2007/10/03)
Difluorinated ligands from azetidinone-4-carboxylates and pyrrolidinone-5-carboxylate have been prepared, substituted onto dirhodium(II), and the reactivities and selectivities of the resulting catalysts have been examined. The fluorinated catalysts exhibit enhanced reactivity towards diazo decomposition but diminished enantioselectivities for cyclopropanation. Selectivity for ylide formation and rearrangement or Si-H insertion is enhanced or similar to that with unfluorinated analogues.
