[PDF] Top 20 J. Braz. Chem. Soc. vol.16 número3B en a01v163b
Has 10000 "J. Braz. Chem. Soc. vol.16 número3B en a01v163b" found on our website. Below are the top 20 most common "J. Braz. Chem. Soc. vol.16 número3B en a01v163b".
J. Braz. Chem. Soc. vol.16 número3B en a01v163b
... By merging into the nanosciences, dramatic changes of paradigm are already taking place in Physics, Chemistry, Biology, Medicine, Electronics and Materials Science, extrapolating the lim[r] ... See full document
1
J. Braz. Chem. Soc. vol.16 número3B
... Um estudo sistemático das correlações de longo alcance em espectros de HMBC foi feito para uma série de ésteres etílicos do ácido cis- e trans-3-(4-oxo-4H-chromen-3-il) acrílico e os derivados 5-hydroxilados. Os ... See full document
5
J. Braz. Chem. Soc. vol.16 número3B
... The performance of a tungsten coil atomizer atomic absorption spectrometer with a D 2 lamp continuum source, a Czerny-Turner monochromator, and a charge coupled device detector was eval[r] ... See full document
4
J. Braz. Chem. Soc. vol.16 número3B
... were confirmed such as 2 α and 3β based on the value of the coupling constants, which were indicative of two trans- diaxial couplings [H-2 β/H-3α (J 9.6 Hz) and H-2β/H-1α (J 11.7 Hz)] and one ... See full document
4
J. Braz. Chem. Soc. vol.16 número3B
... N,N,N’,N’ -tetrabromo-benzene-1,3-disulfonylamide [TBBDA] was reacted with semicarbazones and converts them to their corresponding carbonyl compounds in excellent yields under solvent-fr[r] ... See full document
3
J. Braz. Chem. Soc. vol.16 número3B
... All the analytical standards used in this work were obtained from Chem Service (West Chester, PA, USA) with purity around 99%. The stock and working solutions were prepared in HPLC grade acetonitrile as solvent, ... See full document
4
J. Braz. Chem. Soc. vol.16 número3B
... 6. Scallieta, G.; Journota, N.; Jullienb, F.; Baudinob, S.; Magnardb, J. L.; Channelie’rea, S.; Vergnea, P.; Dumasa, C.; Bendahmanea, M.; Cocka, J. M.; Hugueneya, P.; FEBS Lett. 2002, 523, 113. 7. Knudsen, ... See full document
3
J. Braz. Chem. Soc. vol.16 número3B
... a trisubstituted double bond (G 129.6 and 140.1), a carboxylic acid group (G 182.6), an oxymethine carbon (G 90.5), an oxygenated non-hydrogenated carbon (G 73.9) and seven methyl groups between G 16.2 and 28.7, ... See full document
4
J. Braz. Chem. Soc. vol.16 número3B
... 1. Murray, R. D. H.; Mendez, J.; Brown, S. A.; The Natural Coumarins: Occurrence, Chemistry and Biochemistry; Wiley: New York, 1982; Maes, C. M.; Steyn, P. S.; J. Chem. Soc., Perkin Trans. 1 ... See full document
8
J. Braz. Chem. Soc. vol.16 número3B
... a metallporphyrin, in most of the cases, the four banded spectrum collapses into an essentially two-banded one in visible region, whereas the soret may remain in the usual range or shifted to higher or lower energy ... See full document
3
J. Braz. Chem. Soc. vol.16 número3B
... The aim of this study was to analyze the activity of eight coumarins isolated from different plant species on the development of the symbiotic fungus of the leaf-cutting ant Atta sexden[r] ... See full document
4
J. Braz. Chem. Soc. vol.16 número3B
... continuation of our interest in exploring new reactions on epoxides catalyzed with bismuth (III) salts, and due to the lack of any report on the ring opening of oxiranes with disulfides [r] ... See full document
4
J. Braz. Chem. Soc. vol.16 número3B
... methyl, one methylene, six methine and five quaternary carbons. The assignments were based on HMQC and HMBC spectra. The α-orientation of the methyl group at C-11 was established based on its nOe interactions with H-7 ... See full document
4
J. Braz. Chem. Soc. vol.16 número3B
... Bi(OTf) 3 or Bi(TFA) 3 Catalyzed Efficient, Regio- and Chemoselectively Synthesis of βββββ -Hydroxy. Thioethers from Aryl Disulfides in the Presence of Zinc Powder[r] ... See full document
2
J. Braz. Chem. Soc. vol.16 número3A en a01v16n3a
... The Chemical Societies of different countries have displayed efforts toward this direction, binding the professionals in research, education, technological development and industry.. The[r] ... See full document
1
J. Braz. Chem. Soc. vol.16 número2 en a01v16n2
... At this point in time, prospects for the chemical industry are good in many places of the world and the projections for the Brazilian economy are generally also positive, but the situati[r] ... See full document
1
J. Braz. Chem. Soc. vol.16 número2 en a02v16n2
... The microstructure and surface composition effects on the transpassivation behavior of untreated and heat treated at 500 ºC NiTi wires used for implant purposes were investigated by elec[r] ... See full document
8
J. Braz. Chem. Soc. vol.16 número1 en a01v16n1
... of Prof. Raimundo Braz Filho, highlighting his contributions to Brazilian Chemistry. Due to the increase in the number of submissions and in order to prevent special issues from obstructing the flow of regular ... See full document
1
J. Braz. Chem. Soc. vol.16 número3B
... Compound 1 (20.0 mg), Me 2 SO 4 (0.19 mL), dry Me 2 CO (2.0 mL) and K 2 CO 3 (0.2 g) were heated under reflux for 2 h. After removal of the inorganic salts with H 2 O, the solution was dried over Na 2 SO 4 and ... See full document
5
J. Braz. Chem. Soc. vol.16 número3B
... A solução encontrada pela Natureza foi simplesmente deixar que as moléculas sejam guiadas pela própria afinidade química para gerar sistemas organizados, encontrando dessa forma suas pró[r] ... See full document
1
temas relacionados