A catalyst don’t appear in the overall stoichiometry of the reaction it catalyzes, Computed Properties of https://www.ambeed.com/products/848318-25-2.html, but it must appear in at least one of the elementary reactions in the mechanism for the catalyzed reaction. 848318-25-2, Name is SSR128129E, molecular formula is C18H15N2NaO4. In an article, author is Matsuda, Takanori,once mentioned of 848318-25-2.
Heteroacenes are potentially important materials for organic electronics and their syntheses are of topical interest. Herein we report the development of a catalytic, redox-neutral reaction for the synthesis of the 5,10-dihydroindolo[3,2-b]indole class of heteroacenes. 2-[(2-Azidophenyl)ethynyl]anilines undergo cascade cyclisation by gold(i)/rhodium(ii) relay catalysis. Control experiments show that gold(i) is an effective catalyst for the first indole cyclisation with the aniline moiety, while the second cyclisation, which involves the azide moiety, is catalysed by rhodium(ii). This protocol delivers a variety of N-substituted N-unsubstituted dihydroindoloindoles. 2-[(2-Azidophenyl)ethynyl]phenols are also converted into 10H-benzofuro[3,2-b]indoles through base-promoted benzofuran cyclisation followed by rhodium(ii)-catalysed C-H amination. A related cascade cyclisation reaction of a 2-[(2-azidophenyl)ethynyl]biphenyl is also reported.
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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