共查询到20条相似文献,搜索用时 312 毫秒
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用低价钛试剂(Ticl4-Zn)与3-氧代-1-(3',4'-亚甲二氧苯基)-3-苯基丙基-1-丙二腈反应合成了非对映消旋体(1S,4R;1R,4S)和(1S,4S;1R,4R)2-氨基-3-氰基-1-苯基-4-(3,4-亚甲二氧苯基)-2-环戊烯-1-醇,用X射线衍射分析确定了这两个异构体的相对构型. 相似文献
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建立了动物源性食品中10种水杨酰胺类化合物(5-氯水杨酰苯胺、4'-溴水杨酰苯胺、3',4'-二氯水杨酰苯胺、4',5-二氯水杨酰苯胺、3',4',5-三氯水杨酰苯胺、5-溴-4'-氯水杨酰苯胺、3,5-二溴水杨酰苯胺、4',5-二溴水杨酰苯胺、3,4',5-三溴水杨酰苯胺、3,3',4',5-四氯水杨酰苯胺)的超高效液相色谱-串联质谱(UPLC-MS/MS)检测方法。样品经乙腈萃取,氨基固相萃取小柱(SPE)净化,T3色谱柱分离后,以甲醇-0.1%甲酸溶液梯度洗脱,串联质谱电喷雾负模式扫描,多反应监测模式检测,外标法定量。结果表明,10种目标物在一定范围内线性关系良好,相关系数(r~2)不小于0.995 7,检出限为0.5~1.0μg/kg,定量下限为1.5~3.0μg/kg;加标水平为1.5~30.0μg/kg时,回收率为81.0%~106%,相对标准偏差(RSD,n=6)不大于7.5%。该方法净化效果好、定量准确、灵敏快速,适用于动物源性食品中10种水杨酰胺类化合物的检测与确证。 相似文献
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以5-硝基-2-呋喃甲醛和4-氨基安替比林为原料,合成了一种新的Schiff碱;利用红外光谱、元素分析及X射线单晶衍射表征了其结构,并初步分析了其紫外吸收性能.结果表明,标题化合物属于单斜晶系,P21/n空间群,晶胞参数a=0.70411(6)nm,b=0.77804(9)nm,c=2.7858(2)nm,β=92.0800(10)°,V=1.5251(3)nm3,Dc=1.421g/cm3,Z=4,R=0.0677. 相似文献
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Meng Xia Wang Lizhen Zhai Yunge Duan Hongdong 《Research on Chemical Intermediates》2020,46(12):5517-5533
Research on Chemical Intermediates - Two novel Schiff-base fluorescent probes bearing different substituents were synthesized by the reaction of indole derivatives with 4-aminoantipyrine. The... 相似文献
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《印度化学会志》2021,98(10):100139
The synthesis of 9-Octadecenamide substituted Fe(II) phthalocyanine (ODAFePc) and Ni(II) phthalocyanine (ODANiPc) complexes from Fe(II) tetracarboxylic acid phthalocyanine (FeTcPc) and Ni(II) tetracarboxylic acid phthalocyanine (NiTcPc) with 9-Octadecenamide. These complexes have high molecular weight and soluble in organic solvents. The complexes have been confirmed by FTIR, Mass spectroscopy, UV–Visible X-ray diffraction, and thermogravimetric analysis. The synthesized complexes exhibit excellent stability and are catalytically active in 2-amino-4-chlorophenol (ACP) oxidation. The new method was used for the determination of the oxidation of phenol by applying different experimental parameters like concentration, catalytic quantity, temperature, and pH to get a good yield and catalytic activity of ODAFePc and ODANiPc were studied. ACP was oxidized by dissolved oxygen with ODAFePc and ODANiPc as a catalyst and immediately combined with 4-aminoantipyrine (4-AAP) to form a pink dye and was determined by appearance of absorption intensity at 580 nm. All the experimental results show that ODAFePc and ODANiPc complexes exhibit good catalytic behavior on oxidation of 2-amino-4-chlorophenol. 相似文献
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过氧化物酶(POD)能催化H2O2氧化一系列氢供体(DH2)转化成氧化型供体(D)。氢供体可以是邻联二茴香胺、4-氨基安替比林和苯酚及某些染料隐色体等。这类反应不仅可提供检测H2O2的灵敏方法,还可与产生H2O2的其它酶反应系统联用,测定葡萄糖、半乳糖、氨基酸、尿酸及胆醇等生物物质。 相似文献
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Naglah A. M. Al-Omar M. A. Kalmouch A. Gobouri A. A. Abdel-Hafez S. H. El-Megharbel S. M. Refat M. S. 《Russian Journal of General Chemistry》2019,89(8):1702-1706
Russian Journal of General Chemistry - Mononuclear Au(III) Schiff base complexes are synthesized by the reaction of 4-aminoantipyrine with hydrazine. The chemical structures of new Schiff bases and... 相似文献
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Schiff碱水杨醛缩异烟肼和水杨醛缩4-氨基安替吡啉的合成和晶体结构 总被引:15,自引:0,他引:15
通过水杨醛和异烟肼,4-氨基安替吡啉的缩合反应分别合成了Schiff 碱水杨醛缩异烟肼1,水杨醛缩4-氨基安替吡啉2,并获得其单晶结构。用元素分析,UV-Vis和IR谱进行表征。晶体结构通过X-射线衍射法测定,晶体结构均用直接法解出, 经全矩阵最小二乘法对原子参数进行修正。化合物1:化学计量式为:C13H11N3O2,Mr = 241.25,晶体属于单斜晶系,空间群P21/n, 晶胞参数:a = 8.153(1),b = 15.574(4) , c = 9.554(2) ? b =105.48(1)? V =1169.1(4) ? , Z = 4, Dc =1.371 g/cm3 , m =0.096 mm-1, F(000) = 504,结构偏离因子R = 0.0832, wR = 0.1158,共收集到2384个独立衍射点,其中其I >2(I)的可观测点为2059个。化合物2:化学计量分子式为:C18H17N3O2,Mr = 307.35,晶体属于单斜晶系,空间群P21/n, 晶胞参数: a = 7.597(1),b = 7.500(1) , c = 27.266(5) , b = 95.31(1), V = 1546.7(4) ? , Z = 4, Dc = 1.320 g/cm3 , m = 0.088 mm-1, F(000) = 648,结构偏离因子R = 0.0413, wR = 0.0952,共收集到3282个独立衍射点,其中其I >2(I)的可观测点为2711个。X-射线分析显示化合物1和2的晶体结构均由分子间氢键和-弱相互作用堆积而成的二维层状结构。 相似文献
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《液相色谱法及相关技术杂志》2012,35(2):375-381
Abstract Excretion patterns of urinary phenolic compounds were determined by means of chromatography with Sephadex G-10, with 4-aminoantipyrine for the detection of phenolic compounds. Derivatization for phenolic compounds is based on a coupling reaction with 4-aminoantipyrine in the presence of sodium metaperiodate. The reaction is complete within a few minutes and, thus, provides a simple detection method. Excretion patters of samples with normal subjects and patients of catecholamine-producing tumor were determined and the results were compared. From the data obtained, this method is shown to be useful as a screening test of some catecholamine-producing tumors. 相似文献
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本文研究了以氯化血红素替代辣根过氧化物酶催化过氧化氢与4-氨基安替比林和苯酚的催化显色反应条件,拟订了测定过氧化氢的高灵敏催化分光光度法,做了多种离子对测定过氧化氢的干扰实验。并通过与葡萄糖氧化酶联用,拟订了水介质和血清中葡萄糖的分光光度测定方法,试用于测定血清样品中的葡萄糖含量得到了较满意的结果。 相似文献
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Taisei Ueda Yoshitsugu Shibata Jinsaku Sakakibara 《Journal of heterocyclic chemistry》1986,23(6):1773-1775
Pyrazolo[4,3-c]isothiazoles 4 and 5 were synthesized by the reaction of 4-aminoantipyrine 1 with thionyl chloride. Treatment of 4 or 5 with alkylamines underwent pyrazole ring opening to afford 3,4-disubstituted 1,2-isothiazoles 8a-f . 相似文献