[PDF] Top 20 Synthesis and reactivity of N alkyl 2 oxoalkanesulfonamides
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Synthesis and reactivity of N alkyl 2 oxoalkanesulfonamides
... The solvent was removed under reduced pressure and the residue chromatographed on silica gel using hexanes/ethyl acetate.. Aeylation of lq..[r] ... See full document
18
Synthesis and reactivity of cyclopentadienyl chloro, imido and alkylidene tungsten (VI) complexes
... suspension of 2 (0.5 g, 1.0 mmol) in n-hexane (20 ml) was cooled to approximately −78°C, then a solution of LiCH 2 SiMe 3 ...in n-hexane (15 ml) was added dropwise in the absence ... See full document
5
Synthesis and reactivity of imido niobium complexes containing the functionalized (dichloromethylsilyl)cyclopentadienyl ligand
... Compound 2 reacted with one additional equivalent of LiNHtBu to give the chloro amido niobium complex [NbCp N Cl(NHtBu)(NtBu)] (4) isolated as a mixture of dia- stereoisomers, due to the ... See full document
5
Pyridinium N (2' azinyl)aminides: Regioselective synthesis of 2 alkylaminoazines
... alkylation of the pyrazine-stabilized aminide 6 (Scheme 6, Table 3) with essentially the same ...presence of the ring alkyl- ated compounds 20 in roughly 25% yield indicates that also the more p ... See full document
10
Zirconium and hafnium complexes with (allylsilyl)(η amidosilyl) η5 cyclopentadienyl ligands: synthesis, structure and reactivity
... resonance of the alkyl carbon atom is shifted to higher field (by about 10 ppm for Zr and 20 ppm Hf) on ...spectra of these complexes is the chemical shift of the resonance due to the ... See full document
9
Pyridinium N (2´ azinyl)aminides: Regioselective synthesis of N (2 pyridyl) substituted polyamines
... conversion, and in compounds 9a– f about a 15% of starting aminide 2a was always ...the synthesis of 12 (Scheme 3) from 1,2-diiodoethane or 1,3-diiodopropane, no bis-alkyl- ation was ... See full document
7
Pyridinium N 2´ pyridylaminide: radical cyclization for the synthesis of benzonaphthyridine derivatives
... 3.11.3. 2-Chloro-9-methoxy-benzo[c][1,8]naphthyridine ...mg of 13c as the start- ing material gave a mixture of ...(3%) of tricyclic derivative ...Assignment and analysis of the ... See full document
10
Synthesis and reactivity of oxametallacyclic niobium compounds by using α,ß unsaturated carbonyl ligands
... 2b and 3b, J = 162 Hz for free MMA), consistent with the metallacyclic disposition of the MA ...yield and the lack of purity of the mesityl oxide com- pound 2c made its characterization ... See full document
8
Transition metal complexes with functionalized silyl substituted cyclopentadienyl and related ligands: synthesis and reactivity
... field of homogeneous Ziegler – Natta polymerization has been rapid since Sinn and Kaminsky’s discovery of the highly active zirconocene dichloride/methylaluminoxane system in 1979 ...understanding ... See full document
52
Silyl and siloxanediyl cyclopentadienyl titanium and zirconium complexes: synthesis and reactivity X ray molecular structure of [Zr{η5 C5H4SiMe2(μ OH)}(μ Cl)Cl2]2
... During the course of the reaction, a red crystalline solid formed which was collected by filtration, washed with both cold toluene 15 ml and hexane 2 x 30 ml and dried under vacuum at 11[r] ... See full document
10
Halogenation of pyridinium N (2' pyridyl)aminide: an easy synthesis of halo 2 aminopyridines
... Method A: To a solution of Pyridinium N-2’-pyridylaminide 1 1 mmol in dichloromethane 5 mL stirred at -20°C a solution of the corresponding NXS 1 mmol in the same solvent 10 mL was added[r] ... See full document
6
KNbO3 as Photocatalyst for Hydrogen Production
... different synthesis methods, which showed values of bandgap energies within the spectrum of visible light and showed photocatalytic properties for the dissociation of the water ... See full document
8
Dinuclear cationic zirconium complexes with the fulvalene ligand Synthesis and reactivity
... However, monitoring the reaction of BC6F5 3 with lb by variable temperature NMR spectroscopy, between -80°C and 25°C, permits the observation, at low temperature, of the intermediate dim[r] ... See full document
7
Hemi Synthesis and Anti Oomycete Activity of Analogues of Isocordoin
... NMR, and MS data of compound 1 concurred with those reported for the known chalcone, commonly named as isocordoin, previously reported from Lonchocarpus xuul ...spectrum of 4 0 -oxyalkyl-isocordoin ... See full document
9
Synthesis and antiproliferative activity of new cyclodiprenyl phenols against select cancer cell lines
... treatment of cancer ...avinosol and avarol offer promising opportunities for the development of new antitumor agents ...potential of meroterpenes is of great interest; however, low ... See full document
13
ortho Lithiation Reactions of O (3,n Dihalophenyl) N,N Diethylcarbamates: Synthesis of Dihalosalicylamides and 2,3,n Trihalophenol Derivatives
... typical and more reliable conditions for o-lithiation of O-aryl carbamates and other aromatic compounds, [1,5] in our case the addition of TMEDA did not improve at all the outcome of ... See full document
11
Combined household water treatment and indoor air pollution projects
... 4. SYNTHESIS OF EXPERIENCE FROM CAMEROON AND KENYA ...[r] ... See full document
80
Low dose of sublingual immunotherapy in patients with allergic rhinitis in a randomized double blind placebocontrolled study
... comparison of SCIT vs SLIT regarding compliance was not done and was not their goal, by stu- dying compliance on SLIT at 3 and 6 months of treatment they found compliance to be satisfactory, ... See full document
8
TítuloSynthesis and characterization of photovoltaic materials for low cost and high efficiency solar panels
... size of the precursor solutions could affect the final morphology of the thin ...each of the precursor solutions using the one-step deposition ...SEM, and the resulting images are shown in ... See full document
69
Synthesis and anti-inflammatory activity of 2-{[3-(trifluoromethyl) phenyl] amino} N, N'-bis (aryl) pyridine-3-carboximidamide
... compounds of 2-{[3-(trifluoromethyl) phenyl] amino} N, N’-bis (aryl) pyridine-3-carbox- imidamide ( PJS1-PJS6 ) were synthesized by condensation of niflumic acid with aromatic amines ... See full document
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