Binaphthol-derived phosphoric acids as efficient chiral organocatalysts for the enantiomer-selective polymerization of rac-lactide.

نویسندگان

  • Kosuke Makiguchi
  • Takuto Yamanaka
  • Toyoji Kakuchi
  • Masahiro Terada
  • Toshifumi Satoh
چکیده

A high enantiomer-selectivity for the polymerization of rac-lactide was achieved using chiral binaphthol-derived monophosphoric acids as organocatalysts. During the polymerization, d-lactide (DLA) preferentially polymerized via kinetic resolution with the maximum selectivity factor (kD/kL) of 28.3. The selective polymerization of DLA was derived from a dual activation, i.e., monomer activation and chain-end activation.

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عنوان ژورنال:
  • Chemical communications

دوره 50 22  شماره 

صفحات  -

تاریخ انتشار 2014