【摘 要】
：
Electrochemical oxidation of 4-methyl catechol(1a) is investigated in the presence of 1,3-indandione(3)as nucleophile in phosphate buffer solution(0.2 mol/L,pH
【机 构】
：
Department of Chemistry,Semnan University,College of Chemistry,Shahrood University,Faculty of Chemis
【出 处】
：
Chinese Chemical Letters
论文部分内容阅读
Electrochemical oxidation of 4-methyl catechol(1a) is investigated in the presence of 1,3-indandione(3)as nucleophile in phosphate buffer solution(0.2 mol/L,pH 6) mixed with ethanol as organic green solvent(50/50) using cyclic voltammetry and controlled-potential coulometry.The results indicated thatquinones derived from electro-oxidation of 1a,participated in a 1,4-Michael addition reaction with1,3-indandione(3) under ECCE mechanism.In this direction,a new bis-quinone was synthesized in high yield and good purity using a facile and convenient electrochemical pathway by carbon anode electrodes in an undivided cell.
Electrochemical oxidation of 4-methyl catechol (1a) was investigated in the presence of 1,3-indandione (3) as nucleophile in phosphate buffer solution (0.2 mol / L, pH 6) ) using cyclic voltammetry and controlled-potential coulometry. The results indicated that quinones derived from electro-oxidation of 1a, participated in a 1,4-Michael addition reaction with 1,3-indandione (3) under ECCE mechanism. bis-quinone was synthesized in high yield and good purity using a facile and convenient electrochemical pathway by carbon anode electrodes in an undivided cell.
其他文献
1992年5月,富锦市长安乡长安村农民王立民在其自家承包地里铲地时铲出一枚重1.5斤的“石疙瘩”,经专家鉴定为金代猛安谋克官印。此印约两个火柴盒大小,铸铜,色
In May 1992
血液灌流治疗药物中毒１２０例疗效观察王艳１郭庆恩１林崇亭２１９９４～１９９７年，我们应用血液灌流（ＨＰ）抢救药物中毒１２０例，效果较好，现报告如下。１临床资料１．１一般资料本组病人１２０例，男４７例，女７３例；年龄１２～７０岁，平均４８岁。服药至开始...
抢救氟乙酰胺中毒１２例临床体会山西省大同市第五人民医院（０３７００６）张德全屈新华１）周卫东郭春红１）曹月兰小儿误服氟乙酰胺中毒，近年本地区发生中毒病例有增加趋势，现将我院１９９６～１９９７年收治的１２例报告如下。
目的 了解高促卵泡激素 (FSH)卵巢性闭经患者低骨量的特点。方法 对 18例高FSH原发闭经 (PA组 )、171例高FSH继发闭经 (SA组 )患者 ,采用放射免疫法测定血清雌二醇(E2 ) ;
An efficient synthetic pathway to 2-oxo-1,2-dihydropyridine-fused 1,3-diaza heterocycles from heterocyclic ketene aminals,phathalic anhydride and ethyl cyanacet
患者女，３６岁。心慌、烦躁、心脏骤停感１天就诊。患者１２天前无明显诱因，全身皮肤散在红色斑丘疹和小风团并瘙痒，给予特非那丁（江苏扬州制药厂生产，商品名为敏迪，批号９７１１０１）６０ｍｇ，２次／ｄ口服，外用自制地塞米
请下载后查看，本文暂不支持在线获取查看简介。
Please download to view, this article does not support online access to view profile.
1990～1997年我们收治了因静滴706代血浆治疗蛋白尿、脑血栓、高血压、高血脂等而使肾功能恶化者引例，其中男17例，女14例，年龄17～75岁，平均51．3岁。其中23例由院外转来。全部病人在应
目的：探讨亚临床微量元素缺乏与免疫球蛋白（Ｉｇ）Ｇ亚类缺陷的关系。方法：采用ＤＣＰ－ＡＥＳ分析法，检测３８例ＩｇＧ亚类缺陷患儿血清１１种微量元素含量、Ｔ细胞亚群以及Ｔ细胞增殖反应等，并进行补充锌、铁剂治疗前后观
请下载后查看，本文暂不支持在线获取查看简介。
Please download to view, this article does not support online access to view profile.