共查询到20条相似文献,搜索用时 93 毫秒
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4,5-二(2’-氰乙基硫基)-1,3-二硫杂环戊烯-2-硫酮在甲醇钠的作用下消除一个氰乙基,形成1,3-二硫杂环戊烯-2-硫酮单钠盐,再与9,10-二(氯甲基)蒽反应生成由两个1,3-二硫杂环戊烯-2-硫酮(DMIT)单元和一个蒽单元构建的新型三组分荧光传感器.这种新的荧光分子传感器与乙酸汞(II)的反应,却生成具有强荧光的二乙酸蒽-9,10-二甲酯(4)和双(1,3-二硫杂环戊烯-2-酮-4,5-二硫)Hg(II)配合物(5),利用化合物4的强荧光性质可以选择性识别Hg(II).还在离子液中研究此荧光分子传感器特殊的荧光行为,实验结果表明随着离子液量的增加,溶液的荧光显著增强. 相似文献
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3-苯基-4-氯-1,3,4-二氮磷杂环戊-2-硫酮的合成及其除草活性研究 总被引:1,自引:0,他引:1
报道了苯基硫脲与脂肪醛(酮)及三氯化磷进行的类Mannich反应,除生成预期产物3-苯基-4-氯-4-氧代-1,3,4-二氮磷杂环戊-2-硫酮(Ⅰ)外,还生成了少量3-苯基-4-氯-4-硫代-1,3,4-二氮磷杂环戊-2-硫酮(Ⅱ).当Ⅰ与Lawesson试剂在甲苯中反应时,可顺利地转化为Ⅱ.生物测定结果表明,Ⅱ具有较好的选择性除草活性.晶体结构测定表明,Ⅱ的五元磷杂环为平面结构. 相似文献
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本文研究了苯基硫脲、苯基二氯化膦与脂肪醛(酮)在无水苯中进行的类Mannich反应,在分离产物时发现,除了生成3,4-二苯基-4-氧代-1,3,4-二氮磷杂环戊-2-硫酮(Ⅰ)外,还得到了少量3,4-二苯基-4硫代-1,3,4-二氮磷杂环戊-2-硫酮(Ⅱ).根据化合物Ⅱ的生成及31PNMR跟踪反应的结果,得出反应机理为P-H键对亚胺衍生物的加成.通过X射线衍射分析发现,化合物Ⅰ和Ⅱ的五元杂环均为平面结构,其平面性受4位氧代或硫代的影响较大. 相似文献
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3—苯基—4—氯—1,3,4—二氮磷杂环戊—2—硫酮的合成及其除… 总被引:5,自引:4,他引:5
报道了苯基硫脲与脂肪醋(酮)及三氯化磷进行的类Mannich反应,除生成预期产物3-苯-4-氯-4-氧代-1,3,4二氮磷杂环戊-2-硫酮(Ⅰ)外,还生成了少量3-苯基-4-氯-4-硫代-1,3,4-二氮磷杂环戊-2-硫酮(Ⅱ)。当Ⅰ与Lawesson试剂在甲苯中反应时,可顺利地转化为Ⅱ,生物测定结果表明,Ⅱ具有较好的选择性除草活性,晶体结构测定表明,Ⅱ的五元磷杂环为平面结构。 相似文献
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The compound (Z)-ethyl 5-(phenylamino)-3-(phenylimino)-3H-1,2-dithiole-4-carboxylate 3 has been synthesized by the reaction of ethylacetoacetate 1 and phenylisothiocyanate 2. Its structure has been established by 1H NMR, 13C NMR, infrared, mass spectra, and x-ray crystallography. 相似文献
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Jia Rong LI Shu Ling MA 《中国化学快报》2005,16(11):1424-1426
2H-3, 1-Benzoxazine heterocyclic compounds are a series of potent nonsteroidal pro- gesterone receptor agonists1-3 and have many other applications such as carbonaceous electrode, plant growth regulating and anti-stress activities4-6, etc.. Comparing to other benzoxazine series, such as 1, 4-benzoxazine, 2H-1, 3-benzoxazine, etc., little attentions have been paid for this series of compounds. There is only one method for the preparation of 2H-3, 1-benzoxazine, e.g. cyclocondensation of o-amin… 相似文献
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Bernd Kordts Andreas M. Richter Egon Fanghänel 《Monatshefte für Chemie / Chemical Monthly》1991,122(1-2):71-75
Summary A smooth method of synthesizing 3H, 6H-1,2-dithiolo[4,3-c]1,2-dithiole-3,6-dithione (3), and also its partial desulfuration to yield 3H, 6H-1,2-dithiolo[4,3-c]1,2-dithiole-3-one-6-thione (4) is presented. The ethylation product5 of the monothione4 reacts with various nucleophilic reagents to form remarkably stable adducts. The adducts of5 with methanol,tert-butyl mercaptan, and with aniline could be isolated and characterized by their1H-NMR spectra.
Anlagerungsverbindungen von Nukleophilen an 3-Ethylthio-6-oxo-6H-1,2-dithiolo[4,3-c]1,2-dithioliumtetrafluoroborat. Synthese von 3H,6H-1,2-Dithiolo[4,3-c]1,2-dithiol-3-on-6-thion
Zusammenfassung Eine glatte Synthese für 3H,6H-1,2-Dithiolo[4,3-c]1,2-dithiol-3,6-dithion (3) und für dessen partielle Entschwefelung zu 3H,6H-1,2-Dithiolo[4,3-c]1,2-dithiol-3-on-6-thion (4) wird angegeben. Das Ethylierungsprodukt5 des Monothions4 reagiert mit unterschiedlichen Nukleophilen zu bemerkenswert stabilen Addukten. Die Addukte mit Methanol,tert.-Butylmercaptan und mit Anilin wurden isoliert und durch ihr1H-NMR-Spektrum charakterisiert.相似文献
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S. Gargadennec B. Legouin J.-L. Burgot 《Phosphorus, sulfur, and silicon and the related elements》2013,188(8):1721-1726
The preparation of new 5-formyl-, 5-acetyl- and 5-propionyl-1,2-dithiole-3-ones by oxidation of the corresponding 1,2-dithiole-3-thiones with mercuric acetate is described. 相似文献
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环己酮与硫代碳酰肼在不同介质中的反应,合成出两个不同的环己烷螺含氮杂环化合物。经X-射线结构分析确定它们分别为1,2,4,5-四氮螺[5,5]十一烷-3-硫酮,C_7H_(14)N_4S(Ⅰ)和1,2,4,-三氮螺[4,5]癸-1-烯-4-氨基-3-硫酮。C_7H_(12)N_4S_x(S_x=0.8S+0.2O)(Ⅱ)。晶体学参数分别为(Ⅰ):P2_1/c,a=12.026(4),b=26.817(6),c=12.042(3),β=115.94(2)°,Z=4,V=933.4(10),M_r=186.28;(Ⅱ):P2_1/m,a=6.595(7),b=6.817(6),c=10.572(6),β=106.3(1)°,V=456(1),Z=2,M_r=181.05。最终一致因子分别为R=0.054,R_w=0.065和R=0.089,R_w=0.096。两个化合物中,环己烷都为椅式构型,它与其螺联的6员氮杂环,5员氮杂环的最小二乘平面间的夹角分别为68.94和90°。并对合成反应途径作了初步讨论。 相似文献
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Synthesis and Crystal Structure of 4-Salicyli deneamino-3-methyl-1,2,4-triazol-5-thione 总被引:1,自引:0,他引:1
1 INTRODUCTION 3-Substituted-4-amino-1,2,4-triazol-5-thione is the key synthon in the formation of heterocyclic compound. As a bifunctional agent, it can react with various electrophilic reagents and its derivatives have been reported to show various biological activities to be employed as fungicide[1], micro- biocide[2, 3], bactericide[4], herbicides[5] and anti in- flammatory agents[6]. Furthermore, 3-substituted-4- amino-1,2,4-triazol-5-thione has potential electron donors. Though ma… 相似文献
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L. S. Konstantinova A. A. Berezin K. A. Lysov O. A. Rakitin 《Russian Chemical Bulletin》2006,55(1):147-151
A number of 4-dialkylamino-5-mercapto-1,2-dithiole-3-thiones were synthesized by reactions of alkyl(diisopropyl)amines with
S2Cl2. Their reactions with S2Cl2—DABCO unexpectedly gave 5-chloro-4-dialkylamino-1,2-dithiol-3-ones.
Published in Russian in Izvestiya Akademii Nauk. Seriya Khimicheskaya, No. 1, pp. 143–147, January, 2006. 相似文献
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Treatment of 4-fluoro-5-(1,1,2,2-tetrafluoroethyl)-3H-1,2-dithiole-3-thione with 2 equivalents of sodium sulfide gives after acidification 3,4-difluoro-2-mercapto-1,6,6aλ4-trithiapentalene, which can be further reduced by sodium sulfide to 3,5-difluoro-4-mercapto-thiopyran-2-thione. 相似文献