Year: 2025
Type: article
Abstract: The dimeric potassium alumanyl, [{SiNDipp}AlK]2 ({SiNDipp} = {CH2SiMe2N(Dipp)}2; Dipp = 2,6‐i‐Pr2C6H3), reacts with two equivalents of PhC≡CR (R = Ph or SiMe3) with the exclusive formation of the aluminacyclopropene derivatives, [{SiNDipp}Al{η2‐C2(R1)(R2)}]. In contrast, reactions with an equal stoichiometry of both alumanyl and alkyne reagents provide the products of not only alkyne cycloaddition but also para‐C–H activation of a phenyl substituent. Supported by a theoretical study, this outcome is judged to result from a sequence of cooperative steps and the introduction of a modicum of kinetic discrimination that is suggested to be allosteric in origin.
Source: Chemistry - A European Journal
Authors: Han‐Ying Liu, Jakub Kenar, Henry T. W. Shere, Ryan J. Schwamm, Michael S. Hill, Mary F. Mahon, Claire L. McMullin
Institution: University of Bath
Language: English
Subfield: Inorganic Chemistry
Field: Chemistry
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $4,640
OpenAlex ID: W4409376935