Thirteen, benzo[a]phenoxazin-5-onederivatives 3a-m were synthesized from 4-nitrosoaniline hydrochlorides 1a-m and ethyl 1,3-dihydroxynaphthoate 2 and their fluorescenceproperties were discussed in terms of the electronic effect of substituents. A coupling reaction was carried out with 6-carbethoxy-9-N-(2-hydroxyethyl)-N-methylamino-5H-benzo[a]phenoxazin-5-one (3k) and acetyl-DL-alanine to afford
由4-亚硝基苯胺盐酸盐1a-m和1,3-二羟基萘甲酸乙酯2合成了十三种苯并[ a ]苯恶嗪-5-酮衍生物3a-m,并根据取代基的电子效应讨论了它们的荧光性质。进行偶合反应用6-乙氧羰基-9-进行Ñ(2-羟乙基) - - ñ甲基氨基-5- ħ -苯并[一个]吩恶嗪-5-酮(3K)和乙酰基-DL-丙氨酸,得到ñ - [(6-乙氧基-5-氧代-5 H-苯并[ a ]苯恶嗪)-9-基] -N-甲基氨基亚乙基乙酰基-DL-丙氨酸酯(4)。
Aleksandrow, 1957, vol. 2, p. 432,435
作者:Aleksandrow
DOI:——
日期:——
Synthesis and structure of N-(4-dialkylaminophenyl)hexafluoro-1,4-naphthoquinone 4-imines
作者:L. V. Ektova、A. D. Bukhtoyarova、I. Yu. Bagryanskaya、I. V. Beregovaya、I. P. Chuikov
DOI:10.1134/s1070428013070105
日期:2013.7
The reaction of heptafluoro-1-naphthol with N,N-dialkyl-p-nitrosoanilines or N,N-dialkyl-p-phenylenediamines in the presence of HIO3 gave the corresponding polyfluorinated N-aryl-1,4-naphthoquinone 4-imine derivatives which exist in solution as equilibrium mixtures of Z and E isomers. 2,3,5,6,7,8-Hexafluoro-N-(4-dimethylaminophenyl)-1,4-naphthoquinone 4-imine in crystal has exclusively the Z-isomer structure.
Structure of neutral red and other 2,8-substituted aminophenazines
作者:Joseph Fernando、Winfield S. Morgan、Jack W. Hausser
DOI:10.1021/jo01279a058
日期:1967.4
The synthesis and third-order nonlinear optical properties of resonance Benzo[a]phenoxazinium salts
作者:Bao-Qiang Liu、Ru Sun、Jian-feng Ge、Najun Li、Xue-Liang Shi、Lihua Qiu、Jian-Mei Lu
DOI:10.1016/j.dyepig.2010.04.014
日期:2011.1
The third-order nonlinear optical properties of a series of resonance benzo[a]phenoxazinium salts in acetic acid solution were studied using the Z-scan technique employing a Nd YAG nanosecond laser at 532 nm The compounds displayed strong reverse absorption with third-order nonlinear optical coefficients of 042-1.20 x 10(-11) esu and second hyperpolarizabilities of 2 75-7.29 x 10(-29) esu, respectively. Quantum chemical calculations showed that the compound with more stable highest occupied molecular orbital energy also displayed highest second hyperpolarizability (C) 2010 Elsevier Ltd All rights reserved