ACETOXYLATION OF 6,7-DIALKOXY-SUBSTITUTED 1,4-DIHYDROQUINOXALINE-2,3-DIONES (QXS) USING FUMING NITRIC ACID IN ACETIC ACID - A FACILE SYNTHESIS OF 5-ACYLOXY-6,7-DIALKOXY QXS

Zhou ZL.; Keana JFW.; Weber E.

首页> 外文期刊>Tetrahedron letters: The International Journal for the Rapid Publication of Preliminary Communications in Organic Chemistry >ACETOXYLATION OF 6,7-DIALKOXY-SUBSTITUTED 1,4-DIHYDROQUINOXALINE-2,3-DIONES (QXS) USING FUMING NITRIC ACID IN ACETIC ACID - A FACILE SYNTHESIS OF 5-ACYLOXY-6,7-DIALKOXY QXS

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ACETOXYLATION OF 6,7-DIALKOXY-SUBSTITUTED 1,4-DIHYDROQUINOXALINE-2,3-DIONES (QXS) USING FUMING NITRIC ACID IN ACETIC ACID - A FACILE SYNTHESIS OF 5-ACYLOXY-6,7-DIALKOXY QXS

机译：在乙酸中使用冒烟的硝酸乙酰化6,7-二甲氧基取代的1,4-二羟基喹喔啉-2,3-二酮（QXS）-轻松合成5-乙酰基-6,7-二甲氧基QXS

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Treatment of 6,7-dialkoxy-1,4-dihydroquinoxaline-2,3-diones 3 with fuming nitric acid in acetic acid at 25 degrees C resulted in an acetoxylation reaction, giving 5-acetoxy-6,7-dialkoxy-1,4-dihydroquinoxaline-2,3-diones 4 in moderate yields. A mechanism involving ipso attack of nitronium ion as the first step is proposed. [References: 14]

机译：在25°C下用发烟硝酸在乙酸中处理6,7-二烷氧基-1,4-二氢喹喔啉-2,3-二酮3进行乙酰氧基化反应，得到5-乙酰氧基-6,7-二烷氧基-1， 4-二氢喹喔啉-2,3-二酮4的产率中等。第一步，提出了涉及硝基离子的ipso攻击的机理。 [参考：14]

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《Tetrahedron letters: The International Journal for the Rapid Publication of Preliminary Communications in Organic Chemistry》 |1995年第42期|共4页
作者
Zhou ZL.; Keana JFW.; Weber E.;
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正文语种 eng
中图分类有机化学;
关键词
Aromatic nitration; Ipso attack;

机译：芳香硝化;益普索攻击;

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1. ACETOXYLATION OF 6,7-DIALKOXY-SUBSTITUTED 1,4-DIHYDROQUINOXALINE-2,3-DIONES (QXS) USING FUMING NITRIC ACID IN ACETIC ACID - A FACILE SYNTHESIS OF 5-ACYLOXY-6,7-DIALKOXY QXS [J] . Zhou ZL., Keana JFW., Weber E. Tetrahedron letters: The International Journal for the Rapid Publication of Preliminary Communications in Organic Chemistry . 1995,第42期

机译：在乙酸中使用冒烟的硝酸乙酰化6,7-二甲氧基取代的1,4-二羟基喹喔啉-2,3-二酮（QXS）-轻松合成5-乙酰基-6,7-二甲氧基QXS
2. Theoretical and Experimental Investigation of Acidity of the Glutamate Receptor Antagonist 6,7-Dinitro-1,4-dihydroquinoxaline-2,3-dione and Its Possible Implication in GluA2 Binding [J] . Gutto R. S. de Freitas, Sara E. Coelho, Norberto K. V. Monteiro, The journal of physical chemistry, A. Molecules, spectroscopy, kinetics, environment, & general theory . 2017,第39期

机译：谷氨酸受体拮抗剂6,7-DINITRO-1,4-二氢喹喔啉-2,3-二酮酸度的理论和实验研究及其在GLUA2结合中的可能含义
3. Facile Chemoselective synthesis of 2-(2-(Methoxycarbonyl)-3-oxo-2,3-dihydrobenzofuran-2-yl)benzoic acids and 3H,3'H-Spiro[benzofuran-2,1-isobenzofuran]-3,3-dione derivatives [J] . Firoozi Neda, Roshan Zohreh, Mohammadizadeh Mohammad Reza Applied Organometallic Chemistry . 2018,第1期

机译：体内化学选择合成2-（2-（甲氧基羰基）-3-氧代-2,3-二氢呋喃脲-2-基苯甲酸和3H，3'H-SITO [BENZOFURAN-2,1- isobenzofuran] -3,3 - 衍生物
4. Solvent Extraction Separation of Acetic and Nitric Acids, and Molybdenum from Waste Acids of LCD Industry [C] . C. H. Shin, J. Y. Kim, J. Y. Kim, International Symposium on East Asian Resources Recycling Technology（EARTH 2005); 20051109-15; Beijing(CN) . 2005

机译：液晶工业废酸中溶剂萃取分离乙酸，硝酸和钼
5. The compatibility of 1100 and 2014 aluminum alloys with gelled inhibited red fuming nitric acid [D] . Hallit, Ramona Elizabeth Arndt 1995

机译：1100和2014铝合金与胶凝抑制红发烟硝酸的相容性
6. Differences in the tissue tropism to chicken oviduct epithelial cells between avian coronavirus IBV strains QX and B1648 are not related to the sialic acid binding properties of their spike proteins [O] . Ann-Kathrin Mork, Martina Hesse, Sahar Abd El Rahman, 2014

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7. The determination of nitric and nitrous acids in acetic acid solution. The stability of nitric acid in acetic acid solution [O] . Kennedy J. P. Orton, William Herbert Gray 1912

机译：乙酸溶液中硝酸硝酸的测定。乙酸溶液中硝酸的稳定性
8. Large-Scale Distributions of Tropospheric Nitric, Formic, and Acetic acids Over the Westerm Pacific Basin During Wintertime [R] . Talbot, R. W. , Dibb, J. E. , Lefer, B. L. , 1997

机译：冬季威斯特太平洋盆地对流层硝态氮，甲酸和乙酸的大尺度分布

ACETOXYLATION OF 6,7-DIALKOXY-SUBSTITUTED 1,4-DIHYDROQUINOXALINE-2,3-DIONES (QXS) USING FUMING NITRIC ACID IN ACETIC ACID - A FACILE SYNTHESIS OF 5-ACYLOXY-6,7-DIALKOXY QXS

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