Cover Feature: Facile Synthesis of (C6F5)2BBr and (C6F5)2BX(OEt2) (X=Cl, Br) using Hydrogen Halides and Piers' Borane (Z. Anorg. Allg. Chem. 8/2023). Issue 8 (14th April 2023)

• Record Type: Journal Article
• Authors: Wong, Anthony; Alcántara, Gustavo; Avalos, Matthew; Wu, Guang; Ménard, Gabriel
• Is Part Of: Zeitschrift für anorganische und allgemeine Chemie. Volume 649:Issue 8(2023)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2023-04-14
• Subjects: Haloboranes -- Lewis acids -- Piers' borane -- hydrogen halides; Chemistry, Inorganic -- Periodicals; Chemistry -- Periodicals; 540
• DOI: 10.1002/zaac.202300050
• Languages: English
• ISSNs: 0044-2313

Abstract

Abstract : This cover picture shows the facile and efficient synthesis of common electrophilic haloboranes via a protonolysis reaction between Piers' borane, HB(C6 F5 )2, and the corresponding hydrogen halides, H–X (X = Cl, Br), generating H2 gas as the sole byproduct. The vacuum distillation setup shown here illustrates the in situ‐generated hydrogen halide crossing a glass bridge to react with the hydridic B–H bond in Piers' borane. Preparing the tri‐coordinate boranes and their etherates using this route may provide a gateway into more Lewis acid‐mediated transformations. (DOI: 10.1002/zaac.202300007 ).