(L)-H-Pro-(L)-Phe-OH (4) were found to be efficient catalysts for direct asymmetric aldol reactions between acetone and various aldehydes. The reaction conditions use a DMSO-NMM-PEMG 5000 system at 0 degreesC in high yields (62-96%) and enantioselectivities (up to >99% ee).
机构:
Tohoku Univ, Grad Sch Sci, Dept Chem, Aoba Ku, Sendai, Miyagi 9808578, JapanTohoku Univ, Grad Sch Sci, Dept Chem, Aoba Ku, Sendai, Miyagi 9808578, Japan
Hayashi, Yujiro
Kojima, Masahiro
论文数: 0引用数: 0
h-index: 0
机构:
Tokyo Univ Sci, Fac Engn, Dept Ind Chem, Shinjuku Ku, Tokyo 1628601, JapanTohoku Univ, Grad Sch Sci, Dept Chem, Aoba Ku, Sendai, Miyagi 9808578, Japan