e.g. Filippa Pettersson or Cancer Res. 75(6) , 1102-12, (2015) or 10.1002/anie.201600521
Macromolecules
Optically active helical substituted polyacetylenes as chiral seeding for inducing enantioselective crystallization of racemic n-(tert-butoxycarbonyl) alanine
Helical substituted polyacetylenes were investigated for inducing enantioselective crystallization of racemic N-(tert-butoxycarbonyl) alanine (BOC-alanine) enantiomers. For this purpose, helical substituted polyacetylenes [(R)-PSA and (S)-PSA)] were dissolved in supersaturated racemic BOC-alanine solutions. Upon cooling the solutions,(R)-PSA preferentially induced BOC-l-alanine to crystallize, while (S)-PSA facilitated the ...