Solid complex bases

Solid Complex Bases and the bulk polymerizations of vinyl monomers ... 

They were called Solid Complex Bases (S.C.B.3. 

Finally, although being mainly an organic chemist specialized in synthetic reagents, I hope to have shown how Complex Bases, Solid Complex Bases and Salt Complex Bases could be of interest in the anionic polymerizations or oligomerizations fields and thus to have opened a new way for carrying out this research. 

Tanabe and Hdlderich (1999) have given an extensive statistical survey of industrial processes using solid acids/bases as catalysts. Over 300 solids and bases have been covered. A variety of reactions like alkylation, isomerization, amination, cracking, and etherification with catalysts like zeolites, oxides, complex oxides, phosphates and ion-exchange resins have been covered. Over 120 industrial processes are referred with 180 different catalysts. 

Rates of Spin-State Transition for Solid Metal Complexes Based on the Line Shape... 

As a contrast to this, when 5-phenylamino-l,2,3,4-thiatriazole (42) and an equimolar amount of HMPA in toluene at — 78°C is treated with 1 equivalent of solid lithium bases, LiOH, MeOLi, LiNH2, /-PrjNLi or BuLi dissolved in hexane, extrusion of nitrogen and sulfur is observed on heating to room temperature, resulting in formation of PhNCNLi, HMPA complex (101) (Equation (11)) <93AG1801>. 

Decay Time (t) and Relative Fluorescence Intensity (0) of 5Dq 1F2 Transitions at 6100 to 6200 A for EuD3 and its Solid Complexes with Lewis Bases... 

A preparative solid- gas phase synthesis of acetyl hypofluorite (1, R = Me) has been described it is based on the reaction of dilute fluorine (with air or nitrogen) with a solid complex of potassium acetate with acetic acid and can be also modified7 -9 for the preparation of acetyl... 

The oxonium ylide mechanism requires a bifunctional acid-base catalyst. The validity of the oxonium ylide mechanism on zeolites was questioned459,461,464 because zeolites do not necessarily possess sufficiently strong basic sites to abstract a proton from the trimethyloxonium ion to form an ylide. It should, however, be pointed out, as emphasized by Olah,447,465 that over solid acid-base catalysts (including zeolites) the initial coordination of an electron-deficient (i.e., Lewis acidic) site of the catalysts allows formation of a catalyst-coordinated dimethyl ether complex. It then can act as an oxonium ion forming the catalyst-coordinated oxonium ylide complex (10) with the participation of surface bound CH30 ions ... 

Polyethylene oxide) associates in solution with certain electrolytes (48—52). For example, high molecular weight species of poly(ethylene oxide) readily dissolve in methanol that contains 0.5 wt % KI, although the resin does not remain in methanol solution at room temperature. This salting-in effect has been attributed to ion binding, which prevents coagulation in the nonsolvent. Complexes with electrolytes, in particular lithium salts, have received widespread attention on account of the potential for using these materials in a polymeric battery. The performance of solid electrolytes based on poly(ethylene oxide) in terms of ion transport and conductivity has been discussed (53—58). The use of complexes of poly(ethylene oxide) in analytical chemistry has also been reviewed (59). 

Infrared and Raman spectroscopy are in current use fo r elucidating the molecular structures of nucleic acids. The application of infrared spectroscopy to studies of the structure of nucleic acids has been reviewed,135 as well as of Raman spectroscopy.136 It was noted that the assignments are generally based on isotopic substitution, or on comparison of the spectrum of simple molecules that are considered to form a part of the polynucleotide chain to that of the nucleic acid. The vibrational spectra are generally believed to be a good complementary technique in the study of chemical reactions, as in the study76 of carbohydrate complexation with boric acid. In this study, the i.r. data demonstrated that only ribose forms a solid complex with undissociated H3B03, and that the complexes are polymeric. 

The structure of the parent material in this study—due to its uniqueness with respect to its inequivalent chloride ions both as coordinated and lattice chlorides—represents yet still another example of a solid state copper imidazole material. Others include copper(II) perchlorate salts complexed with amines [10] and copper(I) imidazole complexes based on a cavitand ligand design [11], Copper(I) imidazole complexes have been... 

Moon J, Jung H, Moon M, Chung B, Choi M (2008) Inclusion complex-based solid-phase extraction of steroidal compounds with entrapped b-cycodextrin polymer. Steroids 73 1090-1097... 

T2(Oh) 1A1(Oh) spin equilibrium in iron(II) complexes based on the hy-drotris(l-pyrazolyl)borate ligand, was established for [Fe(HB(me-pz)3)2] (for abbreviations see Sect. 8.1) in the solid state 172>173 and for [Fe(HB(pz)3)2] in solution174 . Sutin et al.17S studied the dynamics of the spin interconversion in CH2C12/CH30H solutions with the laser Raman temperature-jump technique between 0 and 25 °C. The relaxation was observed to be first order with a lifetime of 32 10 ns, independent of temperature and concentration over the range studied. The ki and k j values for the process... 

Solid-phase-based methods offer a faster approach to the synthesis of more complex glycopeptides and also enable multiglycopeptide... 

C5. Casali, P., Bossus, A., Carpentier, N. A., and Lambert, P. H., Solid phase enzyme immunoassay or radioimmunoassay for the detection of immune complexes based on their recognition by conglutinin Conglutinin binding test. Clin. Exp. Immunol. 29,342-354 (1977). 

Cat B is an abundant and ubiquitously expressed cysteine peptidase of the papain family and makes up a major fraction of lysosomal enzymes that is capable of degrading components of the extracellular matrix in various diseases [30-32]. Cat B is also a prognostic marker for several types of cancer [33], and increased expression and secretion of cat B has been shown to be involved in the migration and invasion of various tumours [34—36], The precise role of cat B in solid tumours is not fully understood, but it has been proposed to participate, along with other cysteine cathepsins, in metastasis, angiogenesis, and tumour progression [37], Indeed, cat B inhibitors reduce both tumour cell motility and invasiveness in vitro [38], Recently, metal complexes based on rhenium, gold and palladium were shown to be effective inhibitors of cat B [39-44],... 

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