Iridium-Catalyzed Synthesis of Substituted Indanones from Aromatic Carboxylates and Unsaturated Ketones
作者:Guodong Zhang、Zhiyong Hu、Giulia Bertoli、Lukas J. Gooßen
DOI:10.1021/acscatal.9b02536
日期:2019.9.6
A catalytic annulation is presented that provides straightforward, modular synthetic access to 3-substituted indanones from benzoic acids and α,β-unsaturated ketones. It is catalyzed by a bimetallic Ir/In system and proceeds via hydroarylation followed by Claisen condensation and optional retro-Claisen deacylation. The annulation may be combined into a one-pot procedure with the synthesis of the unsaturated
Polyphosphoic acid-catalyzed cyclisations of aryl styryl ketones
作者:R.G. Shotter、K.M. Johnston、H.J. Williams
DOI:10.1016/0040-4020(73)80159-0
日期:1973.1
Reaction of a number of arylstyrylketones with polyphosphoric acid has been investigated and, with the exception of 9-anthryl styrylketone, each undergoes smooth cyclisation to give an isomeric 5-membered ring ketone. The polyphosphoric acid- and aluminium chloride-catalysed cyclisations of 1-naphthyl styrylketone, which give 3-phenyl-2,3-dihydrobenz(e)inden-1-one and phenalen-1-one respectively