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The three-component reactions of phenanthridine, activated acetylenes, and ethyl bromopyruvate through both of simultaneous and stepwise process are surveyed. The reactions afforded the corresponding pyrrolo[1,2-f]phenanthridine derivatives in good yields without using any catalyst and activation.
[Supplementary materials are available for this article. Go to the publisher's online edition of Synthetic Communications® for the following free supplemental resource(s): Full experimental and spectral details.] 相似文献
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Mehdi Pishahang Egil Bakken Svein Stølen Christopher Ian Thomas Paul Inge Dahl 《Ionics》2013,19(6):869-878
The oxygen non-stoichiometry and redox thermodynamic properties of the LaFe1 ? x Co x O3 ? δ system (x?=?0.25 and 0.75) are studied. At low temperatures, the LaCoO3 and LaFeO3 systems show partial solid solubility. At 1,273 K (in air), both compounds are single phases and are orthorhombic and rhombohedral for x?=?0.25 and 0.75, respectively. Thermogravimetry has been used to measure the oxygen non-stoichiometry versus oxygen partial pressure at three temperatures, 1,223, 1,273, and 1,323 K. Redox thermodynamic quantities are extracted directly from the oxygen non-stoichiometry curves. The extracted enthalpies of oxidation do not vary significantly with stoichiometry, and for x?=?0.25 and 0.75, they are ?640?±?60 and ?440?±?60 kJ (mol O2)?1, respectively. Ideal solid solution thermodynamic models are used to analyze the redox mechanisms. 相似文献
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Larring Yngve Pishahang Mehdi Tolchard Julian Lind Anna M. Sunding Martin F. Stensrød Ruth E. Jacobs Marijke Snijkers Frans van der Kolk Tjalling Albertsen Knuth 《Journal of Thermal Analysis and Calorimetry》2020,140(2):577-589
Journal of Thermal Analysis and Calorimetry - The CLOU performance of the CaTixMn0.9?xMg0.1O3 (CMTM) perovskite-type system was investigated, comparing materials produced at laboratory scale... 相似文献
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Pishahang Mehdi Larring Yngve Adánez Juan Gayán Pilar Sunding Martin 《Journal of Thermal Analysis and Calorimetry》2018,134(3):1739-1748
Journal of Thermal Analysis and Calorimetry - Alumina-supported Fe2O3 oxygen carrier material (OCM) system is among the most promising OCM systems for solid and gaseous fuel CLC. This work utilizes... 相似文献
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