共查询到20条相似文献,搜索用时 78 毫秒
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用O,O-二烷基二硫代磷酸酯与α-卤代乙酰胺在丙酮或氯仿/水体系中反应,合成了40余种标题化合物,确定其结构;研究了酰胺分子中不同取代基对反应的影响.测定它们对植物的抑制活性发现,引入磷酰基可保持原来卤代酰胺的生物活性,但选择性却有明显提高,初步讨论了这类化合物结构与活性的规律。 相似文献
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N-芳基-异丙胺甲酰基膦酰胺甲酯的研究陈茹玉,李慧英,任康太(南开大学元素有机化学研究所,天津,300071)关键词膦酰胺,氨基甲酰基膦酸酯,氢键N,N-二烷基-氨基甲酰基膦酰胺酯类化合物具有调节植物生长的活性[1],N,N-二烷基-氨基甲酰基膦酸二... 相似文献
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为寻找新的高活性农药 ,根据生物等排原理 ,设计合成了 10种未见文献报道的N′ 5 ( 1H 1,2 ,3 ,4 四唑基 ) N 芳甲酰基硫脲类化合物 .它们的结构经IR ,1HNMR和元素分析确证 .初步的生物活性测定结果表明 ,部分化合物具有优良的除草活性或植物生长调节活性 . 相似文献
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N-5-(1H-1,2,4-三唑基)-N′-芳甲酰基脲的合成与生物活性 总被引:3,自引:2,他引:3
以5-氨基-1H-1,2,4-三唑-3-羧酸与酰基异氰酸酯反应,合成了15个新的N-5-(1H-1,2,4-三唑基)-N′-芳甲酰基脲,用核磁共振氢谱、红外光谱和元素分析确证了其结构,并进行了室内生物活性测试.生测试验证明部分酰基脲类化合物具有良好的植物生长调节活性,其中N-5-(3-羧基-1,2,4-三唑基)-N′-o-氯苯甲酰基脲、N-5-(3-羧基-1,2,4-三唑基)-N′-o-溴苯甲酰基脲和N-5-(3-羧基-1,2,4-三唑基)-N′-P(或m)-甲基苯甲酰基脲具有优良的生长素活性. 相似文献
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《Journal of Coordination Chemistry》2012,65(16):1449-1454
A new zinc diphosphonate [NH3CH(CH3)CH2NH3]2Zn2(edbbp)2(HNO3)2·4H2O [eddbp?= O3PCH(Ph)NH(CH2)2NHCH(Ph)PO3] was hydrothermally synthesized with Zn(NO3)2·6H2O, ethane-1,2-diamino-N,N′-bis(benzylphosphonic acid) (H4edbbp) and 1,2-propyldiamine. It consists of a centro-symmetric dimeric unit [Zn2(edbbp)2], in which each zinc ion adopts a distorted square-pyramidal coordination geometry. Hydrogen bonds formed between phosphonate groups and protonated 1,2-propyldiamine molecules link the dimeric units into one-dimensional chains. The doubly protonated 1,2-propyldiamine molecules serve not only as charge compensating counter ions, but also as bridging groups. Hydrogen-bonding interactions among the phosphonate oxygen atoms, water molecules, nitric acid molecules and protonated 1,2-propyldiamine result in the formation of a three-dimensional supramolecular network. 相似文献
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采用4′-氨基苯并-15-冠-5与长链卤代烷反应,合成了一系列N-单长链烷基取代及N,N-双长链烷基取代的氨基苯并-15-冠-5。通过1HNMR、IR、MS、UV和元素分析证明了产物的结构 相似文献
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Aminou Mohamadou Gerard A. van Albada Ilpo Mutikainen Urho Turpeinen Jrme Marrot Jan Reedijk 《Polyhedron》2009,28(14):2813-2820
Six mononuclear complexes are reported with the tetradentate ligand N,N′-bis(2-pyridylmethyl)-1,3-propanediamine, (abbreviated as pypn) i.e. [Cu(pypn)(ClO4)2](H2O)1/2 (1), [Fe(pypn)Cl2](NO3) (2), [Zn(pypn)Cl](ClO4) (3), [Co(pypn)(NCS)2](ClO4) (4), [Co(pypn)(N3)2](ClO4) (5), [Zn(pypn)(NCS)2] (6). The synthesis and X-ray crystal structures of all six compounds and their spectroscopic properties are presented.The geometry of the Cu2+, Co3+, Zn2+, Fe3+ ions is essentially octahedrally based, with the mm conformation (for Cu) and msf conformations for the other 3 metal ions; in compound 3 the geometry around the Zn2+ is distorted trigonal bipyramidal. The stabilisation of the crystal lattices is maintained by interesting, relative strong hydrogen bonds. 相似文献
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The synthesis, characterization and reactivity of ytterbium monochloride supported by tridentate Schiff base ligands are described. The metathesis reaction of anhydrous YbCl3 with 1 equivalent of the sodium salt of a Schiff base, [{LNa(THF)}2] (1) [LH = 3,5-But2-2-(OH)-C6H2CHN-8-C9H6N], gave the ytterbium Schiff base monochloride complex L2YbCl (2). Complex 2 reacted with NaOAr (OAr = OC6H3But-2-Me-4) in a 1:1 molar ratio to form the desired aryloxo derivative L2Yb(OAr) (3). Complex 3 can also be prepared by the one-pot reaction of the Schiff base HL, n-BuLi, YbCl3 and NaOAr in a 2:2:1:1 molar ratio. However, an unprecedented ytterbium aryloxide LL′Yb(OAr) (4) (L′ = 3,5-But2-2-(O)C6H2CH(C4H9)-NH-8-C9H6N) can be isolated in low yield as a byproduct in the later case. Reaction of complex 2 with 1 equivalent of (CH2CH-CH2)MgBr in THF afforded the unexpected complex [Mg(H2N-8-C9H6N)Cl(THF)3]Br (5). Complexes 2-5 were fully characterized by elemental analysis and X-ray diffraction. 相似文献
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Summary. Solid complex of europium nitrate with 2,2′-(2,3-naphthylenebisoxy)bis(N,N-diisopropylacetamide) (L) has been prepared and characterized. The X-ray crystal structure and the solvent dependent fluorescence properties of the
Eu(III) complex were investigated. 相似文献
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Christiana M. Adeyemi Heinrich C. Hoppe Michelle Isaacs Rosalyn Klein Kevin A. Lobb Perry T. Kaye 《Tetrahedron》2019,75(16):2371-2378
An efficient synthetic pathway to a series of novel “reverse” fosmidomycin analogues has been developed, commencing from substituted benzylamines. In these analogues, the fosmidomycin hydroxamate moiety is reversed and the tetrahedral methylene carbon adjacent to the phosphonate moiety is replaced by a nitrogen atom bearing different benzyl groups. The resulting phosphonate esters were designed as potential antimalarial “pro-drugs”. 相似文献
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本文报道了22个新的4,5-二氧-(2-硫)-1,3,2,4-二氮二磷杂环戊烷化合物。对合成路线和条件作了初步探讨。产物的结构经IR、1H和31PNMR及元素分析得到证实,测定了部分产物的MS。在31PNMR谱中产物的顺式和反式异构体均得到了指认。部分产物的生物活性初步测定结果表明,它们具有一定的除草和抑菌活性。 相似文献