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Investigation of Solid State Synthesis and Characterizations of Novel Sodium Rare-Earth Oxyphosphates
Oxyphosphates Rare-earths Sodium Rare Earth Oxyphosphate Raman powder XRD SEM
2010/4/16
A new orthorhombic phase of Na2LaOPO4 (sodium lanthanum oxyphosphate), and novel Na2NdOPO4 (sodium neodymium oxyphosphate), Na2SmOPO4 (sodium samarium oxyphosphate) were synthesized by solid state rea...
One Step Synthesis of Some 2,5,6-Trisubstituted-1,3-Dioxin-4-ones
Cyclic oxalyl compounds a -oxoketene 1,3-dioxin-4-one
2010/4/16
A number of novel 2,5,6-trisubstituted-1,3-dioxin-4-one derivatives were synthesized via one step reactions between dibenzoylmethane or benzoylacetone and oxalyl chloride in refluxing solvents contain...
Synthesis of the Amide Derivatives of 3-[1-(3-Pyridazinyl)-5-phenyl-1H-pyrazole-3-yl]propanoic Acids as Potential Analgesic Compounds
Pyridazine pyrazole analgesic writhing
2010/4/8
A series of structurally diverse amide derivatives of 3-[1-(3-pyridazinyl)-5-phenyl-1H-pyrazole-3-yl]propanoic acids were prepared and tested for their in vivo analgesic activity using an acetic acid...
Synthesis and Characterization of NiFe2O4 Nano-Octahedrons by EDTA-Assisted Hydrothermal Method
Octahedral nanocrystals ferrites magnetic nanoparticles hydrothermal synthesis coercivity EDTA NiFe2O4
2010/4/8
Octahedral-like NiFe2O4 ferrite nanocrystals were synthesized using EDTA-assisted hydrothermal method under mild conditions. XRD and FTIR analysis were used for composition and structure investigation...
Synthesis and Isolation of 1-Cyclohex-1,2-dien-1-ylbenzene from 1-(2-Iodocyclohex-1-en-1-yl)benzene and 1-(2-Iodocyclohex-2-en-1-yl)benzene
Cyclic strained allenes dehydroiodination dimerisation cycloaddition
2010/4/8
The key compounds, 1-(2-iodocyclohex-1-en-1-yl) benzene (12) and 1-(2-iodocyclohex-2-en-1-yl) benzene (13), for the generation of 1-cyclohex-1,2-dien-1-ylbezene (20) were synthesized starting with cyc...
The Direct Electrochemical Synthesis of Ti(II), Fe(II), Cd(II), Sn(II), and Pb(II) Complexes with N, N´-Bis(Salicylidene)-o-Phenylenediamine
Electrochemical Synthesis N N'-Bis(Salicylidene)-o-Phenylenediamine metal complex
2010/4/8
The electrochemical oxidation of anodic Ti, Fe, Cd, Sn, and Pb (=M) into acetonitrile solutions of N,N'-bis(salicylidene)-o-phenylenediamine [SalophH2] gives the corresponding M(Saloph) complexes in h...
A Convenient and Efficient Synthesis of N-Acylsulfonamides in the Presence of Silica Phosphoric Acid under Heterogeneous and Solvent-Free Conditions
N-acylsulfonamide solvent-free silica phosphoric acid heterogeneous condition N-acylation
2010/4/8
Reaction of sulfonamides with carboxylic acid anhydrides and chlorides in the presence of silica phosphoric acid provided N-acyl sulfonamides in good to high yields. All reactions were performed under...
Synthesis of New 5-Aryl Pyrido [3´, 2´: 4, 5] Thieno [2, 3-e] [1, 2, 3, 4] Tetrazolo [1, 5-c}] Pyrimidine Derivatives
Thienopyridine thienopyridopyrimidine sodium azide phosphoryl chloride
2010/4/8
The synthesis of new 5-arylpyrido [3', 2': 4, 5] thieno [2, 3-e][1, 2, 3, 4] tetrazolo[1, 5-c] pyrimidine derivatives is described.
Synthesis of Piperazine Based Polyimide in the Presence of Ionic Liquids
Ionic liquids polyimide catalysts condensation polymers
2010/4/8
Ionic liquids derived from imidazolium, pyridinium, and alkylammonium salts were investigated not only as catalysts but also as solvents in polymerization of 1,4-bis(3-aminopropyl) piperazine. Results...
Synthesis, Thermal, Electrical and Catalytic Studies of Some Transition Metal Polychelates of Bis-bidentate Schiff Base
Schiff base polychelate TGA solid-state conductivity catalytic activity
2007/12/20
Polychelates of Mn(II), Fe(II), Co(II), Ni(II), Cu(II), Zn(II) and Cd(II) with the bis salen-type ligand derived from 4,4'-bis[(salicylaldehyde-5)azo]biphenyl and 1,4-diaminobutane have been synthesiz...
Synthesis of Mesoporous Lanthanum Phosphate and Its Use as a Novel Sorbent
mesoporous surfactant lanthanum phosphate metal cation sorption
2007/12/20
Mesoporous lanthanum phosphate was synthesized by supramolecular self-assembly of cetyltrimethylammonium bromide and lanthanum nitrate following digestion in phosphoric acid. TGA-DTA, XRD and SEM were...
Triheterocyclic Thiadiazepine Derivatives of Pharmacological Interest: Synthesis of 2-Aryl-4-[p-(2,3-dihydro-5-methyl-2-oxo-1,3,4-oxadiazol-3-yl)phenyl]-6-(un)substituent-1
4-acetylphenylsydnone 1，3-dipolar cycloaddition 1，3，4-thiadiazepine 1，2，4-triazole 1，3，4-oxadiazo-line triheterocycle ring closure condensation Michael addition cardiovascular agent
2007/12/20
摘要 Synthesis of novel thiadiazepine derivatives based on the reactivity of 4-acetylphenylsydnone (1) was reported. The structures of the newly synthesized compounds have been proved by their physical,...
Synthesis of Antipyrine Derivatives Derived from Dimedone
dimedone antipyrine 1,2,3-triazole phenylhydrazone
2007/12/20
摘要 Coupling of dimedone with the diazonium salt of 4-aminoantipyrine afforded 2,3-dimethyl-4-[2-(5,5-dimethyl- 2,6-dioxocyclohex-2-ylidend)-hydrazino]-5-oxo-1-phenylpyrazoline (3). Reaction of 3 with ...
Synthesis and Pharmacological Activity of Annelated Pyrimidine Derivatives
2-methylsulfanylpyrimidine thienopyrimidine
2007/12/20
摘要 A series of 1-glycosyl-2-glycosylthiopyrimidine (4), annelated pyrimidinederivatives, pyrazolo[3,4-d]- pyrimidine (8), ditetrazolo[1,5-a;1',5'-c]pyrimidine (9), 2,9a,10-triazaanthracene (12), thien...
Synthesis and Characterization of New Material——La/Zr/MMT Employed in Acetone Oxidation
锆交联 蒙脱土 稀土镧掺杂 丙酮氧化
2007/12/20
摘要 蒙脱土作为一种新型催化材料, 越来越受到人们的重视。目前对锆交联的层状蒙脱土已有很多研究，但采用稀土元素掺杂锆制备交联蒙脱土并用于VOCs氧化方面的研究鲜有报导。本文合成了稀土镧掺杂锆复合的交联蒙脱土新材料，采用XRD, TEM, TG-DTA和BET等分析手段对合成的样品进行了表征。结果表明，经镧掺杂锆柱撑以后，蒙脱土层间距由1.57增加到4.85nm，与单一的锆柱撑的蒙脱土相比较，该材料...