Convenient access to the tricyanoborate dianion B(CN)₃²⁻ and selected reactions as a boron-centred nucleophile.

Borylation of fluorinated arenes using the boron-centred nucleophile B(CN)32- - a unique entry to aryltricyanoborates.

The potassium salt of the boron-centred nucleophile B(CN)32- (1) readily reacts with perfluorinated arenes, such as hexafluorobenzene, decafluorobiphenyl, octafluoronaphthalene and pentafluoropyridine, which results in KF and the K+ salts of the respective borate anions with one {B(CN)3} unit bonded to the (hetero)arene. An excess of K21 leads to the successive reaction of two or, in the case o...

Borylation of fluorinated arenes using the boron-centred nucleophile B(CN)3 2– – a unique entry to aryltricyanoborates† †Electronic supplementary information (ESI) available: Additional tables, experimental information, analytical data and details of the DFT calculations. CCDC 1548893–1548910. For ESI and crystallographic data in CIF or other electronic format see DOI: 10.1039/c7sc02249b Click here for additional data file. Click here for additional data file.

Easy access to nucleophilic boron through diborane to magnesium boryl metathesis

Organoboranes are some of the most synthetically valuable and widely used intermediates in organic and pharmaceutical chemistry. Their synthesis, however, is limited by the behaviour of common boron starting materials as archetypal Lewis acids such that common routes to organoboranes rely on the reactivity of boron as an electrophile. While the realization of convenient sources of nucleophilic ...

Conversion of vertically-aligned boron nitride nanowalls to photoluminescent CN compound nanorods: Efficient composition and morphology control via plasma technique

Two-dimensional BN/CN nanomaterials of various composition and morphology were synthesized in N2eH2 plasma by plasma-enhanced hot filament chemical vapor deposition, with B4C used as precursor. The results of field emission scanning electron microscopy, X-ray diffractometer, transmission electron microscopy, micro-Raman and X-ray photoelectron spectroscopy evidence that the hexagonal boron nitr...

Evidence That Metaphosphate Monoanion Is Not an Intermediate in Solvolysis Reactions in Aqueous Solution'

The slope of plots of log k2 against the pKa of the leaving group for reactions of uncharged, monoanionic, and dianionic oxygen nucleophiles with three phosphorylated pyridine monoanions changes from PI, = -0.98 to -0.79 as the pK, of the oxygen nucleophile increases from 3.6 to 15.7 (aqueous solution; 25 "C; ionic strength, 1.5). This coupling between the strength of the nucleophile and the me...