A one-pot synthesis and structure study of a new salt spiropyran of the indoline series containing 2H-chromene vinyl-3H-indolium moiety as a substituent at the 8'-position are described. The structure was confirmed by 1H and 13C NMR and IR spectroscopy and high-resolution mass spectrometry. The single crystals of the compound were investigated by X-ray diffraction analysis. The structure was compared with the previously known isostructural analog.

中文翻译：

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一种具有阳离子取代基的新型二氢吲哚螺吡喃的一锅法合成及结构研究

描述了含有 2H-色烯乙烯基-3H-吲哚鎓部分作为 8'-位取代基的二氢吲哚系列新盐螺吡喃的一锅合成和结构研究。其结构经 1H 和 13C NMR、IR 光谱和高分辨率质谱证实。通过X-射线衍射分析研究化合物的单晶。该结构与先前已知的同构类似物进行了比较。