Synthesis of β-Amino Acids and Derivatives
An efficient asymmetric 1,4-addition of arylboronic acids to β-phthaliminoacrylate esters was realized by use of a hydroxorhodium/chiral diene complex to give high yields of β-aryl-β-amino acid esters with excellent enantioselectivity.
T. Nishimura, J. Wang, M. Nagaosa, K. Okamoto, R. Shintani, F.-y. Kwong, W.-y. Yu, A. S. C. Chan, T. Hayashi, J. Am. Chem. Soc., 2010, 132, 464-465.