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151.
152.
Yamasaki K Sakuma Y Sasaki J Matsumoto K Anzai K Matsuoka K Honda C Tsukada M Endo K Enomoto S 《Analytical and bioanalytical chemistry》2011,401(8):2531-2538
The excretion of essential trace elements, namely, Se, Sr, As, Mn, Co, V, Fe, and Zn into the bile of Se-deficient (SeD) Wistar
male rats was studied using the multitracer (MT) technique, and instrumental neutron activation analysis (INAA). Normal and
Se-control (SeC) rat groups were used as reference groups to compare the effects of Se levels on the behaviors of the essential
trace elements. The excretion (% dose) of Se, Sr, As, Mn, Co, and V increased with Se levels in the liver. The biliary excretion
of Mn and As dramatically enhanced for SeC rats compared with SeD rats, while that of V accelerated a little for SeC rats.
The radioactivity levels of 59Fe and 65Zn in the MT tracer solution were insufficient to measure their excretion into bile. The role of glutathione and bilirubin
for biliary excretion of the metals was discussed in relation to Se levels in rat liver. 相似文献
153.
Nishiwaki N Hirao S Sawayama J Saigo K Kobiro K 《Chemical communications (Cambridge, England)》2011,47(17):4938-4940
α-Nitro-δ-keto nitriles and α-nitro-δ-keto ester were readily converted to diazabicyclo compounds having vicinal functionality upon treatment with diamines. The keto nitrile attracts the diamine nearby to an acidic hydrogen to cause the pseudo-intramolecular imination which proceeds efficiently without any catalyst at room temperature. 相似文献
154.
Peng Zhou Si-Xuan Guo Linbo Li Tadaharu Ueda Yoshinori Nishiwaki Liang Huang Zehui Zhang Jie Zhang 《Angewandte Chemie (International ed. in English)》2023,62(8):e202214881
Herein, we report highly efficient carbon supported Ni−MoO2 heterostructured catalysts for the electrochemical hydrogenation (ECH) of phenol in 0.10 M aqueous sulfuric acid (pH 0.7) at 60 °C. Highest yields for cyclohexanol and cyclohexanone of 95 % and 86 % with faradaic efficiencies of ∼50 % are obtained with catalysts bearing high and low densities of oxygen vacancy (Ov) sites, respectively. In situ diffuse reflectance infrared spectroscopy and density functional theory calculations reveal that the enhanced phenol adsorption strength is responsible for the superior catalytic efficiency. Furthermore, 1-cyclohexene-1-ol is an important intermediate. Its hydrogenation route and hence the final product are affected by the Ov density. This work opens a promising avenue to the rational design of advanced electrocatalysts for the upgrading of phenolic compounds. 相似文献