Photochromic and thermochromic spiropyrans. 22*. Spiropyrans of the 4-oxo-3,4-dihydro-3h-1,3-benzoxazine series containing π-accepting substituents at position 8′

被引：0

作者：

Bulanov, A.O. ^{[1
]}

Safoklov, B.B. ^{[2
]}

Luk'yanov, B.S. ^{[1
]}

Tkachev, V.V. ^{[2
]}

Minkin, V.I. ^{[1
]}

Aldoshi, S.M. ^{[2
]}

Alekseenko, Yu.S. ^{[1
]}

机构：

[1] Sci.-Res. Inst. Phys./Organ. Chem., Rostov State University, Rostov-on-Don 344090, Russia

[2] Inst. of Prob. of Chemical Physics, Russian Academy of Sciences, Chernogolovka 142432, Moskov Region, Russia

来源：

Chemistry of Heterocyclic Compounds | 2003年 / 39卷 / 03期

关键词：

Photochromism;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

New spiropyrans of the benzoxazinone series were synthesized by modification of the formyl group in compounds containing an asymmetric spiro carbon atom. It was shown that 1H NMR identification of the spiropyrans containing π-accepting hydrazone substituents must be conducted at elevated temperatures by following the presence of and degree of subsequent recovery. According to X-ray crystallographic analysis, crystal solvates can form, depending on the solvent used for crystallization of the hydrazones of the spiropyrans.

引用

页码：308 / 314