1H and 13C NMR assignments for new heterocyclic TAM leuco dyes, (2Z,2′E)-2,2′-(2-phenyl propane-1,3-diylidene) bis(1,3,3-trimethylindoline) derivatives.: Part II

被引：10
|
作者：
Keum, Sam-Rok [1 ]
Roh, Se-Jung [1 ]
Lee, Min-Hyung [1 ]
Sauriol, Francoise [2 ]
Buncel, Erwin [2 ]
机构：
[1] Korea Univ, Dept Adv Mat Chem, Jochiwon 339700, South Korea
[2] Queens Univ, Dept Chem, Kingston, ON K7L 3N6, Canada
来源：
MAGNETIC RESONANCE IN CHEMISTRY | 2008年 / 46卷 / 09期
关键词：
NMR; 1H NMR; 13C NMR; 1D NMR; 2D NMR; (2Z,2'E)-2,2'-(2-phenyl propane-1,3-diylidene) bis(1,3,3-trimethylindoline); (2Z,2'E)-2,2'-(2-phenyl propane-1,3-diylidene) bis(5-chloro-1,3,3-trimethylindoline); three-bladed propeller conformations;
D O I：
10.1002/mrc.2255
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The H-1 and C-13 NMR spectra of the novel heterocyclic Leuco-TAM dyes, (2Z,2'E)-2,2'-(2-phenyl propane-1,3-diylidene) bis(1,3,3-trimethylindoline) derivatives 1-4 as precursors of triarylmethane (TAM)+ (Malachite Green FB-analog) dyes were completely assigned by 1D and 2D NMR experiments, including DEPT, COSY, HSQC, HMBC, and NOESY. Especially, the diastereotopic gem-dimethyl protons at the C3 and C3' positions of the FB rings were definitively assigned. The (Z,E) isomers adopt the energetically favored three-bladed propeller conformation in solution. Copyright (c) 2008 John Wiley & Sons, Ltd.
引用
收藏
页码：872 / 877
页数：6
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