作者:Kazuto Takaishi、Daisuke Sue、Shunsuke Kuwahara、Nobuyuki Harada、Takeo Kawabata、Kazunori Tsubaki
DOI:10.1016/j.tet.2009.05.040
日期:2009.8
(S,R,S,R,S,R,S)- and (S,R,S,S,S,R,S)-octinaphthalenes were synthesized by oxidative coupling of (S,R,S)-quaternaphthalene, and differences due to axis chirality of (S,R.S,R,S,R,S)-, (S,R,S,S,S,R,S)-, (S,S,S,R,S,S,S)-, and (S,S,S,S,S,S,S)-octinaphthalenes were compared using the R-f values on TLC, specific optical rotations, H-1 NMR chemical shifts of the hydroxy groups, and CD spectra. A clear CD additivity was found in the Delta(epsilon) values of the L-1(a) transition around 290 nm, which are proportional to the difference between the numbers of S and R binaphthalene units. (C) 2009 Elsevier Ltd. All rights reserved.