Structural Snapshots on Stepwise Anionic Oxoborane Formation: Access to an Acyclic BO Ketone Analogue and Its Metathesis Chemistry with CO₂ and CS₂.

ABSTRACT: In this work, we disclose the synthesis and characterization of non-acid/base-stabilized anionic oxoboranes [^MesTer₂BO][K(L)] (^MesTer = -C₆H₃-2,6-(2,4,6-Me₃-C₆H₂)₂, L = [2.2.2]-cryptand or 18-crown-6), which are isoelectronic and isostructural with aryl-substituted ketones. The stepwise synthetic formation of these ion-separated oxoboranes is demonstrated on the one hand by the treatment of the parent borinic acid ^MesTer₂BOH with N-heterocyclic carbenes (NHCs) to give [^MesTer₂BO][HNHC] derivatives, and on the other hand by a deprotonation-sequestration sequence. Bearing polarized boron-oxygen moieties, their inherent reactivity toward both ca

SUBMITTER: Heitmann M 

PROVIDER: S-EPMC11836929 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature