2018/05/09 by Felix Kutter, Enno Lork, Jens Beckmann · 7 citations
Chemistry · #Biphenylene #Borane #Boranes #Boron #Catalysis #Chemistry #Coordination Chemistry and Organometallics #Crystallography #Diphenylphosphine #Frustrated Lewis pair #Heteronuclear molecule #Lewis acids and bases #Medicinal chemistry #Metathesis #Nuclear magnetic resonance spectroscopy #Organic chemistry #Organoboron and organosilicon chemistry #Polymerization #Salt (chemistry) #Stereochemistry #Synthesis and characterization of novel inorganic/organometallic compounds
paper · doi:10.1002/zaac.201800160
published in Zeitschrift für anorganische und allgemeine Chemie 644(21), 1234-1237 (Wiley)
openalex publication_date 2018/05/09 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Starting from 1,8‐dibromo‐biphenylene, [1‐(bromo)biphenylen‐8‐yl]diphenylphosphine ( 1 ) and [1‐(diphenylphosphanyl)biphenylen‐8‐yl]dimesitylborane ( 2 ) were prepared by sequential metal / halide exchange and salt metathesis reactions. The phosphinoborane 2 comprises a frustrated Lewis pair (FLP) mounted on a peri ‐substituted biphenylene scaffold with a P ··· B distance of 4.100(3) Å. Attempts to capture dihydrogen and carbon dioxide failed, presumably due to the insufficient Lewis acidity of the dimesityl borane group. Compounds 1 and 2 were characterized by heteronuclear NMR spectroscopy and X‐ray crystallography.