[PDF] Top 20 Synthetic and structural studies of permethylscandocene and permethyltantalocene derivatives
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Synthetic and structural studies of permethylscandocene and permethyltantalocene derivatives
... of 0 to the metal center to give an 112 acyl complex.s This coordination mode activates the CO toward further reaction, as evidenced by observed dimerization and tetr[r] ... See full document
118
Synthetic and structural studies of 1 halo 8 (alkylchalcogeno)naphthalene derivatives
... of derivatives 1-8 imposes a great amount of steric strain between the ...all derivatives this distance is between 82 and 88 % of the vdW sum (Table ... See full document
24
Structural and synthetic studies of toxic terpenoids
... Conversion of the ketone to cyclo- hexylmethylnitrile derivatives followed by oxidations of the allyl group and ring closure gave two series of decalin carbonitrile[r] ... See full document
235
Synthetic studies on R207910, aza-Diospongin A and hydroxylamine derivatives
... the structural complexity, paucity, side effects of, these pharmacologically active natural compounds has set limitations to use them as drug ...similar synthetic analogues with minimum molecular complexity ... See full document
15
Synthetic, structural and spectroscopic studies of peri substituted systems and their complexes
... It was also noted, when the products were left overnight in chlorinated solvent, the solution changed colour from yellow to green. 31 P NMR of the green solution showed degradation of product, with the only peaks being ... See full document
305
Structural and quantum chemical studies on aryl sulfonyl piperazine derivatives
... first synthetic antibiotics to be used in clinic and they exhibit interesting pharmacological properties, such as selectivity to bacterial cells and low ...sulfonamides derivatives were synthesized, ... See full document
10
Synthetic, structural, and spectroscopic studies of sterically crowded tin chalcogen acenaphthenes
... As expected, the stronger 3c-4e Cl-Sn-E bonding present in 5-9 has a greater impact on counteracting the steric repulsion that invariably builds up between the closely aligned Sn and E lone- pair orbitals and is thus ... See full document
15
Synthetic, structural, and stability studies of metal complexes of cross -bridged tetraamine macrocycles
... Ancillary ligands in this complex include one water as well as a bridging chloride from the ZnCfr2' counterion. The inter- and intra-molecular hydrogen bonding interactions from two such units result in a pseudo-dimeric ... See full document
360
Synthetic, Spectroscopic, Structural and Computational Studies of Enyl and Ynyl Carbon-Rich Complexes
... methanol derivatives through the reaction of acetylide anions with chloroethylformate, has been ...This synthetic protocol is not only high yielding, but avoids the harsh conditions used in literature ... See full document
330
Reactivity profile of a peri substitution stabilized phosphanylidene phosphorane : synthetic, structural, and computational studies
... 18 the donor stabilization is rather efficient in these literature species as some of the derivatives were inert enough to be purified by column chromatography. An interesting observation from the reactions with ... See full document
38
Applications of X ray crystallography: studies into the structural perturbations of peri substituted naphthalene derivatives
... Se Se Figure 4-1. Naphtho[1,8-c,d]-1,2-diselenole (Se 2 naph). Both of these procedures are in reality quite lengthy and present a number of synthetic hurdles. For example, the experimental details reported by ... See full document
278
STRUCTURAL STUDIES ON LAMELLARIN ALKALOIDS, TOTAL SYNTHESIS OF PURPURAMINE-K AND DEVELOPMENT OF NOVEL SYNTHETIC METHODOLOGIES.
... quinoline derivatives have been found to possess a wide spectrum of biological actions such as psychotropic, anti-allergic, anti-inflammatory and estrogenic ... See full document
6
Synthesis, structural studies and antituberculosis evaluation of new hydrazone derivatives of quinoline and their Zn(II) complexes
... the synthetic flexibility of quinoline hydrazones, which allows the generation of a large number of structurally diverse derivatives and their metal complexes [9,10] ...hydrazone derivatives are ... See full document
11
Studies of synthetic chalcone derivatives as potential inhibitors of secretory phospholipase A2, cyclooxygenases, lipoxygenase and pro-inflammatory cytokines
... significant structural constituent of the outer membrane of gram-negative bacteria, and the literature suggests its role as an immunostimulator that induces systemic inflammation response, and particularly, the ... See full document
14
Therapeutic journey of synthetic betacarboline derivatives: A short review
... (QSAR) studies have been performed on β- carboline derivatives to explore the structural necessities for antitumor ...QSAR studies were done using V-Life Sciences MDS ...the structural ... See full document
8
Structural and synthetic studies of alkaloids of the Proteaceae
... The approach was based on hydrogen bonding studies and the correlation of observed v c_ o values for tropine and pseudotropine with values of known axial and equatorial hydroxy cycloa[r] ... See full document
290
Diverse derivatives of selenoureas : a synthetic and single crystal structural study
... A combination of strong intramolecular and intermolecular N–H ··· O hydrogen bonding, complemented by weaker interactions involving Se results in the supramolecular structure as shown in[r] ... See full document
15
“STUDIES ON NEW SYNTHETIC STRATEGIES FOR O- AND S-DERIVATIVES OF MONOTERPENES
... as synthetic approach to them are given, as an introduction to the present ...classical synthetic organic chemistry, and it continues to be a topic of active research even ...as synthetic tools is ... See full document
6
Synthetic and structural studies on dinuclear rhodium (ii) compounds
... Structure Analysis And Refinement:- Direct methods (Rh atoms) followed by alternating cycles of least-squares refinement and difference-fourier synthesis. The asymmetric unit contains one badly disordered molecule of ... See full document
258
NEUROPSYCHOPHARMACOLOGIC STUDIES OF MARIJUANA: SOME SYNTHETIC AND NATURAL THC DERIVATIVES IN ANIMALS AND MAN *
... Many investigators have observed that marijuana smoking or T H C derivatives in man cause a significant increase in heart rate.5751 Manno and coworkersm and Renault[r] ... See full document
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