Photomodulated chiral induction in helical azobenzene oligomers

被引：49

作者：

King, Eric D. ^{[1
]}

Tao, Peng ^{[1
]}

Sanan, Toby T. ^{[1
]}

Hadad, Christopher M. ^{[1
]}

Parquette, Jon R. ^{[1
]}

机构：

[1] Ohio State Univ, Dept Chem, Columbus, OH 43210 USA

来源：

ORGANIC LETTERS | 2008年 / 10卷 / 09期

关键词：

D O I：

10.1021/ol8004722

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Appending L-alanine to the terminal positions of a helical azobenzene oligomer produced a P helical bias, which increased with oligomer length. Irradiation gave rise to E --> Z isomerization of the terminal azo linkages, which displaced the stereogenic center Of L-Ala from the helix backbone and suppressed chiral induction. Theoretical simulations of the CD spectrum of the P helical conformation are in qualitative agreement with the experimental spectra.

引用

页码：1671 / 1674

页数：4

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