Record number :
1718007
Title of article :
Stereospecific interaction of one-handed helical polycations with chiral anions
Author/Authors :
Agata، نويسنده , , Yuya and Kobayashi، نويسنده , , Motoyasu and Kimura، نويسنده , , Hiroshi and Takeishi، نويسنده , , Makoto، نويسنده ,
Issue Information :
دوهفته نامه با شماره پیاپی سال 2002
Pages :
5
From page :
4829
To page :
4833
Abstract :
Optically active polyamide helices were obtained by the reaction of axially dissymmetric (R)- or (S)-6,6′-dibromo-2,2′-diethoxy-1,1′-binaphthyl, 3,6-diaminoacridine (proflavine), and carbon monoxide using a palladium catalyst. The acridine units in the chiral backbone were protonated with chiral 10-camphorsulfonic acid. Circular dichroism measurements revealed that (R)-(−)-camphorsulfonate anion ((R)-(−)-CSA−) is more easily incorporated into the protonated right-handed polyamide helix than (S)-(+)-camphorsulfonate anion ((S)-(+)-CSA−) and that the left-handed cationic helix preferentially interacts with (R)-(−)-CSA− to (S)-(+)-CSA−.
Keywords :
3 , 6-Diaminoacridine , Camphorsulfonic acid , Helical polyamide
Journal title :
Polymer
Serial Year :
2002
Link To Document :
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