Issue 48, 2020

Insertion reactions of the C–B–N-substituted borinium cation [MesBNiPr2]+

Abstract

The synthesis and isolation of the first stable C–B–N-substituted borinium [MesBNiPr2][B(C6F5)4] (2) is described. Compound 2 was shown to react with isothiocyanate and carbodiimides, effecting B–C insertion to afford nitrilium (4) and borenium amidinate salts, respectively. The borinium cation [MesBNiPr2]+ (2+) was also generated from reactions of MesB(Cl)NiPr2 (1) and GaCl3, and used to prepare stable borenium amidinate salts (5–6), while the triflate borane MesB(OTf)NiPr2 (7) reacts with carbodiimide to give the bis(amidinate) boronium salt [MesC(NiPr)2B((NiPr)2C)NiPr2][OTf] (8).

Graphical abstract: Insertion reactions of the C–B–N-substituted borinium cation [MesBNiPr2]+

Supplementary files

Article information

Article type
Paper
Submitted
22 Okt. 2020
Accepted
16 Nov. 2020
First published
17 Nov. 2020

Dalton Trans., 2020,49, 17571-17577

Insertion reactions of the C–B–N-substituted borinium cation [MesBNiPr2]+

K. L. Bamford and D. W. Stephan, Dalton Trans., 2020, 49, 17571 DOI: 10.1039/D0DT03665J

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