Six 3,6-dichloropyridazine-derivatized cinchona alkaloid catalysts were synthesized and applied in IFB reaction.

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The results show that the ionic liquid Et〓NHCl-AlCl〓 is an effective catalyst for the dimerization.

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On the basis of the peak absorption values of the visible spectra of MB, the dimerization constants and the molar absorption coefficients of the monomer and the dimer of MB were calculated.

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Based on the biochemical analysis of the two proteins in vitro, the results of yeast two-hybrid experiment and protein-interaction in both wild type cells and C48 strain, we conclude HetR can form a homodimer through the Cys48 residue. We also show that the dimerization is required for heterocyst differentiation.

基于體外兩種蛋白的性質(zhì)比較和酵母雙雜交的結(jié)果，并結(jié)合相應藍細菌野生型和突變株C48A中HetR蛋白性質(zhì)的體內(nèi)研究表明：HetR蛋白可以通過第48位半胱氨酸殘基形成共價結(jié)合的同源二聚體h片一级官网，該同源二聚體是異型胞正常分化所必需的美女隐私全身免费看网站。

Calcium pimelate, calcium azelate and zinc azelate are prepared by alkali neutralization process, and calcium dimer are prepared using double decomposition reaction, the effect of binary carboxylate heat stabilizer on PVC thermal stability is studied adopting Congo red method and toast with heat method.

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The selective linear dimerization of isoprene to formate myrcene in a single phase catalyst solution prepared by mixing two metals, amine, solvent and a small content of isoprene was studied.

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Reparation of PBO was begun with the polymerization process in which composite salts that contained 4,6-diaminoresorcinol and terephthalic acid were dissolved in polyphosphoric acid and phosphorus pentoxide.

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The result expressed that under the concentration of 0.2mg/mL, the 6 compounds are all active to Sarcina lutea, ME-1, MT-6, MT-land MT-7 are active to Bacillus megaterium, to Escherichia coli, only MT-2 is active. The dimeric natural products are intensively existed in botany, most of them have the obvious biological activities. They have been concentrated on in recent years, and they are one of the compounds to which are enjoyed great popularity in natural product.

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The interaction between polyethylene glycols and unsaturated polyester reduces the crystallization the PEG component, which is related to the molecular weight and content of the PEG in the system.

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With an increase in Bcl-2 protein, more Bax homodimers were separated and conjugated with Bcl-2 protein to form more stable Bcl-2/Bax heterodimers than Bax homodimers, which'neutralize'apoptosis induction of Bax protein.

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