67868-63-7Relevant academic research and scientific papers
Spiropyrans and spirooxazines and preparation method thereof
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Paragraph 0061; 0062; 0063, (2019/01/22)
The invention provides spiropyrans, naphthospiropyrans and spirooxazines. The invention also relates to a method for preparing the spiropyrans, the naphthospiropyrans and the spiroxazines by reactionof indole compounds, especially indole iodide, with alde
Comparative Evaluation of Substituent Effect on the Photochromic Properties of Spiropyrans and Spirooxazines
Balmond, Edward I.,Tautges, Brandon K.,Faulkner, Andrea L.,Or, Victor W.,Hodur, Blanka M.,Shaw, Jared T.,Louie, Angelique Y.
, p. 8744 - 8758 (2016/10/14)
Spiropyrans and spirooxazines represent an important class of photochromic compounds with a wide variety of applications. In order to effectively utilize and design these photoswitches it is desirable to understand how the substituents affect photochromic properties, and how the different structural motifs compare under identical conditions. In this work a small library of photoswitches was synthesized in order to comparatively evaluate the effect of substituent modifications and structure on photochromism. The library was designed to modify positions that were believed to have the greatest effect on C-O bond lability and therefore the photochromic properties. Herein we report a comparative analysis of the UV and visible light responses of 30 spiropyrans, spiroindolinonaphthopyrans, and spirooxazines. The influence of gadolinium(III) binding was also investigated on the library of compounds to determine its effect on photoswitching. Both assays demonstrated different trends in substituent and structural requirements for optimal photochromism.
Copper chelators
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Paragraph 0037; 0043, (2015/11/09)
The present invention relates to a new class of chemical compounds of structure 6,7-dimethoxy-1,2,3,4-tetra-hydro-isoquinoline having therapeutic action, processes for the synthesis thereof and formulations containing said derivatives. More particularly, the present invention relates to ligand compounds adapted for chelating the free cupric ion in the serum of patients suffering from Alzheimer's and Wilson's diseases.
Efficient synthesis and fluorescence properties of highly functionalized 2-aryl-quinazolin-4(3H)-ones
Waibel, Michael,Hasserodt, Jens
supporting information; experimental part, p. 2767 - 2769 (2009/09/25)
Three different methodologies for the preparation of highly substituted 2-aryl-quinazolin-4(3H)-ones including short and high-yielding reaction sequences are described. The 2-aryl-substituent of most of the target compounds bears three functional groups.
