共查询到19条相似文献,搜索用时 98 毫秒
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2,6-二氯苯甲酸桥联的双核锰配合物的水热合成与晶体结构 总被引:1,自引:0,他引:1
A dinuclear manganese(Ⅱ) complex, [Mn2(L1)2(phen)4]·(ClO4)2 (1), has been synthesized and structurally characterized (HL1=2,6-dichlorobenzoic acid, phen=1,10-phenanthroline). It crystallizes in triclinic system, space group P1 with a=1.112 3(4) nm, b=1.378 2(4) nm, c=2.085 7(3) nm, α=93.768(2)°, β=90.606(10)°, γ=95.606(3)°, V=3.174 8(15) nm3, Z=2, C62H38C16Mn2N8O12, Mr=1 409.58, Dc=1.475 g·cm-3, μ=0.718 mm-1, F(000)=1 428, R=0.064 3, wR=0.138 3. In the crystal the manganese atom is six-coordinated by two oxygen atoms from two different 2,6-dichlorobenzolate molecules and four nitrogen atoms from two 1,10-phenanthroline molecules, completing an octahedral geometry. CCDC: 692296. 相似文献
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研究了2-氯苯甲醛(CBZD)与苯肼的衍生化反应,在pH 1.0的乙醇/水溶液中,2-氯苯甲醛与苯肼形成荧光希夫碱,研究了希夫碱的荧光性质,希夫碱的荧光激发波长eλx=552.0 nm,发射波长eλm=299.2 nm.其荧光强度与2-氯苯甲醛浓度在0~120μg.L-1范围内呈线性关系,检出限为0.2μg.L-1。方法应用于矿泉水、自来水、生理盐水、葡萄糖注射液中2-氯苯甲醛的测定。 相似文献
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A new method for synthesizing 2,6-dichlorodiphenylamine was presented in this article.2,6-dichlorodiphenylamine is the key intermediate for the preparing of diclofenac sodium.It was synthesized in a one-shot reaction with 2,6-dichlorophenol,a solution of sodium methoxide in methanol,methyl chloroacetate,aniline,and sodium hydroxide as raw materials by the acid-base neutralization,etherification,ammonolysis of ester,Smiles rearrangement of amide,and alcoholysis or hydrolysis of the rearrangement product.Based on many times of experiment,the best technological condition was found.The yield of target compound was about 91%. 相似文献
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Starting from tetraacetylribofuranose and 6-chloropurine, in the presence of was synthesized for the first time under microwave irradiation. The title compound 6-chloro-9-β-D-purinenucleoside (Ⅳ) and 6-methoxy-9-β-D-purinenucleoside (Ⅴ) was easily obtained by treatment of the intermediate (Ⅲ) with Na2CO3 in CH3OH solution refluxing for 8min and 2hr respectively. 相似文献
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Bin ZHANG Yong GAO Jian Li LI Zhen SHI 《中国化学快报》2006,17(9):1165-1168
Triketones are an important class of compounds in view of the distinct structure feature and wide utility in macromolecular material, organic synthesis and coordination chemistry1. The synthetic method for preparing symmetrical triketones 1, 3, 5- triacetylbenzene reported by Robert et al. is via condensation of acetone with ethyl formate followed by the trimerization of the intermediate acetylacetaldehyde2. We reported the reaction of benzimidazolium salts with Grignard reagents, providing a … 相似文献
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建立了利托那韦的合成新方法。N-{N-甲基-N-[(2-异丙基-4-噻唑基)甲基]氨基羰基}-L-缬氨酸(1)与(2S,3S,5S)-5-氨基-2-{N-[(5-噻唑基)-甲氧羰基]氨基}-1,6-二苯基-3-羟基己烷在3-(二乙氧基磷酰氧基)-1,2,3-苯并三嗪-4-酮催化下于室温经缩合反应合成了利托那韦,其结构经1H NMR,13C NMR,MS和元素分析确证。在最佳反应条件[1 0.2 mol,DEPBT 0.25 mmol,二氯甲烷为溶剂,三乙胺为缚酸剂,于室温反应过夜]下,收率72.6%。 相似文献
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Muscone is a precious fragrant compound scarce in nature. Many attempts to synthesize this unique natural product have been carried out. In this work, a novel synthetic method for the preparation of muscone from 3‐methyl‐15‐hydroxypentadecanoate is provided. Benzimidazolium salt was used as tetrahydrofolate coenzyme model at formic acid oxidation level and Grignard reagent as nucleophile to which a one‐carbon unit was transferred. The biomimetic synthesis of muscone was successfully accomplished using the addition‐hydrolysis reaction of benzimidazolium salt with the Grignard reagent. 相似文献
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研究了l-肼基-2,3-二氮杂萘盐酸盐的合成新方法.以相对廉价易得的邻苯二甲酸酐为起始原料,依次通过还原、溴代、环合、取代、酸化等反应步骤得到目标产物1-肼基-2,3-二氮杂萘盐酸盐.研究表明该方法具有原料便宜易得、收率高、产物易分离纯化、后处理操作简单、总成本低等优点. 相似文献