A catalyst don’t appear in the overall stoichiometry of the reaction it catalyzes, but it must appear in at least one of the elementary reactions in the mechanism for the catalyzed reaction. 167869-21-8, Name is PD98059, molecular formula is C16H13NO3. In an article, author is Dai, Pan-Pan,once mentioned of 167869-21-8, Application In Synthesis of PD98059.
Orientation-dependent effects of indeno [1,2-b] indole-spirofluorene donor on photovoltaic performance of D-pi-A and D-D-pi-A sensitizers
Dyes JY70-73 based on indeno[1,2-b]indole-spirofluorene (IISF) donor have been synthesized and applied in dye-sensitized solar cells, two of them feature donor-pi-acceptor (D-pi-A) configuration and the others adopt a D-D-pi-A structure. Orientation-dependent effects of IISF donor are clearly observed in the photovoltaic properties of D-pi-A type dyes JY70 and JY72, though close power conversion efficiency (PCE) achieves finally owing to the trade-off effect of open-circuit voltage (V-OC) and short-circuit current density (J(SC)). By contrast, regioisomeric dyes JY71 and JY73 with an auxiliary diphenylamine donor present a significantly different photovoltaic performance. Under the [Co(phen)(3)](2+/3+) electrolyte, device based on JY73 gives much higher V-OC and J(SC), hence a greater PCE (7.40%) which is over two times higher than its regioisomeric JY71 (3.31%). Reasons for that have been systematically investigated. Cocktail co-sensitizations of dyes JY73 and JY70/JY72 both promote the PCEs up to over 8%, and device based on JY72&JY73 achieves the highest PCE of 8.32%.
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Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles