[Show abstract][Hide abstract]ABSTRACT: One step Beyond: The transmetallation reactions of ArB(OH)(2) and Ar(3) B(3) O(3) with Et(2) Zn are far more complicated than previously supposed, with solvent-dependent equilibria between ArB(OY)(2) at one side and [RZn(solv)(3) ][BR(4) ] at the other. While the role of the highly reactive organozinc cation has not been implicated before, its importance for the activation of an otherwise sluggish class of electrophiles is shown.
Article · May 2012 · Angewandte Chemie International Edition
[Show abstract][Hide abstract]ABSTRACT: Palladium-catalysed dearomatisation reactions allow access to a previously unknown class of indoloindole heterocycle: 5,10b-dihydroindolo[2,3-b]indoles. The highly reactive nature of these compounds is demonstrated by their facile reactions with water and with hydride, alkyl, aryl and allyl-based organometallic nucleophiles.
[Show abstract][Hide abstract]ABSTRACT: ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
[Show abstract][Hide abstract]ABSTRACT: Despite their intrinsic instability, 4a-alkyl-4aH-carbazoles can be generated by a catalytic dearomatisation process; their reactivity is demonstrated by facile dealkylation and highly unusual cyclodimerisation processes.