Capturing carbon monoxide-Accessing bis(boryl)ketones through direct B-B bond carbonylation.

ABSTRACT: Carbon monoxide (CO) readily attacks the B-B bonds of the cyclic tetra(amino)tetraborane B4(NCy2)4 [cyclohexyl (Cy)], which led to insertion and ring expansion, creating tetraboron analogs of cyclopentanone and cyclohexane-1,3-dione. These intriguing molecules are rare instances of stable CO diborylation products that were made accessible by direct CO capture. While the monocarbonyl product shows remarkable thermal stability, the dicarbonyl product rearranges into a bicyclic tetraborylethylene structure under thermal stress. Combined analytical and theoretical efforts clearly highlight the unique electronic, spectroscopic, and structural characteristics of these carbonyl compounds. The cyclopentanone analog engages in stepwise one- and two-electron reduction processes to yield radical mono

SUBMITTER: Beck E 

PROVIDER: S-EPMC12383245 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature