Atropisomers of meso-conjugated uracyl porphyrin derivatives and their assembling structures

被引：13

作者：

Arai, Satoshi ^{[1
]}

Niwa, Daisuke ^{[1
]}

Nishide, Hiroyuki ^{[1
]}

Takeoka, Shinji ^{[1
]}

机构：

[1] Waseda Univ, Dept Appl Chem, Shinjuku Ku, Tokyo 160, Japan

来源：

ORGANIC LETTERS | 2007年 / 9卷 / 01期

关键词：

D O I：

10.1021/ol062394q

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

We have synthesized a 5,15 meso-substituted methyluracyl porphyrin derivative bearing 6-methyluracyl units directly at the meso positions. The atropisomerization was regulated by steric replusion between the methyl substituents. When the atropisomers were mixed with alkylated melamine as a complementary hydrogen-bonding unit, the hydrogen-bonded assemblies were analyzed by diffusion-ordered spectroscopy (DOSY) in solution, which clarified that the alpha alpha isomer formed a face-to-face dimer, whereas the alpha beta isomer took a zigzag structure.

引用

页码：17 / 20

页数：4

共 19 条

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