75018-24-5Relevant academic research and scientific papers
Catalytic Dehydrogenation of Amine-Boranes using Geminal Phosphino-Boranes
Boom, Devin H. A.,de Boed, Ewoud J. J.,Nicolas, Emmanuel,Nieger, Martin,Ehlers, Andreas W.,Jupp, Andrew R.,Slootweg, J. Chris
, p. 586 - 592 (2020/02/11)
The reaction of the intramolecular frustrated Lewis pair (FLP) tBu2PCH2BPh2 with the amine-boranes NH3·BH3 and Me2NH·BH3 leads to the formation of the corresponding FLP-H2/
Aryl-aryl coupling in a polycyclic aromatic hydrocarbon with embedded tetracoordinate boron centre
Kirschner, Sven,Bao, Song-Song,Fengel, Melina K.,Bolte, Michael,Lerner, Hans-Wolfram,Wagner, Matthias
, p. 5060 - 5065 (2019/06/03)
The addition of 2 eq. of MesLi to the biphenylene-containing 9,10-dihydro-9,10-diboraanthracene (DBA) 2 results in the formation of the corresponding oxaboraphenanthrene 3 after column chromatography under ambient conditions. In the initial step, the anio
Synthesis and Spectroscopic and Structural Characterization of the Novel Lithium Borylamide Salts trans-2, a Dimer, and the Ion Pair with a Linear Allene-like, -, Moiety
Bartlett, Ruth A.,Chen, Hong,Dias, H.V. Rasika,Olmstead, Marilyn M.,Power, Philip P.
, p. 446 - 449 (2007/10/02)
Treatment of the primary aminoborane H2NBMes2 (1) with n-BuLi in Et2O/hexane gives an almost quantitative yield of the novel dimeric lithium amide 2 (2).The addition of 1 equiv of Mes2BF to LiNHBMes2, generated in situ, gives the recently published diborylamine HN(BMes2)2 (3).The compound 3 reacts with 1 equiv of n-BuLi to give the salt +- (4) in quantitative yield.Details of the 11B NMR spectra and X-ray crystal structures of 1, 2, and 4 are reported.Crystal data α (λ = 0.71069 Angstroem)> at 130 K (293 K for 2) are as follows: 1, a = 8.602 (3) Angstroem, b = 9.637 (2) Angstroem, c = 10.248 (2) Angstroem, β = 109.38 (2) deg, Z = 2, monoclinic, space group P21, 1505 unique data, R(F) = 0.069; 2, a = 9.010 (4) Angstroem, b = 9.440 (5) Angstroem, c = 25.958 (12) Angstroem, β = 97.56 (4) deg, Z = 2, monoclinic, space group P21/n, 3859 unique data, R(F) = 0.063; 4, a = 12.699 (3) Angstroem, b = 12.889 (6) Angstroem, c = 14.371 (5) Angstroem, β = 91.87 (2) deg, Z = 2, monoclinic, space group P21, 5645 unique data, R(F) = 0.058.The structures of the compounds are notable for a number of reasons.For example, 1 is the first primary aminoborane, i.e.R2BNH2 (where R = alkyl or aryl group), to be structurally characterized.It possesses a short B-N distance of 1.375 (8) Angstroem.The X-ray crystal structure of 2 is the first for a lithium salt of a primary aminodiarylborane.The structure of the unique diborylamide anion - (4) reveals the first example of an essentially linear 176.2 (3) deg BNB system.The BN distances are 1.343 (5) and 1.348 (5) Angstroem, and the CBC planes have a dihedral angle of 88 deg.Thus, it is isoelectronic to and isostructural with the corresponding allene system and the borinium cations +.
