Routes to the formation of 1,3,5-triaryl- and 2,4,6-trichloro-1,3,5-triarylborazines and intermediate compounds
作者:I. B. Atkinson、D. B. Clapp、C. A. Beck、B. R. Currell
DOI:10.1039/dt9720000182
日期:——
triethylamine–borane and in those which involve heating the 1 : 1 adduct of the arylamine and trichloroborane. Products isolated in these cases include diazaboranes (bisaminoboranes)[(ArNH)2BH], aminodichloroboranes [ArNHBCl2], and triazaboranes (boronamines)[ArNH·BX·NAr·BX·NArH](X = Cl or H). A possible reaction path to the formation of borazines involving these intermediates is discussed.
“Spontaneous” Ambient Temperature Dehydrocoupling of Aromatic Amine-Boranes
作者:Holger Helten、Alasdair P. M. Robertson、Anne Staubitz、James R. Vance、Mairi F. Haddow、Ian Manners
DOI:10.1002/chem.201103241
日期:2012.4.10
via regeneration of 3 a. The adducts 3 a–c also underwent rapid dehydrocoupling in the solid state at elevated temperatures and even very slowly at ambient temperature. From aniline–borane derivative 3 c, the linear iminoborane oligomer (p‐CF3C6H4)N[BH‐NH(p‐CF3C6H4)]2 (11) was obtained. The single‐crystal X‐ray structures of 3 a–c, 5 a, 7 a, 7 b⋅THF, and 11 are discussed.
芳基伯胺-硼烷伯加合物ArNH 2 · BH 3(3 a – c ; Ar = a:Ph,b:p -MeOC 6 H 4,c:p -CF 3 C 6 H 4)的脱氢偶联/脱氢行为在环境温度下的溶液以及在环境温度或高温下的固态下都进行了详细的研究。发现金属催化剂的存在对于释放H 2是不必要的。从3 a,b的反应在22°C于THF中的浓缩溶液中经过24小时24小时分离出环三硼烷(ArNH-BH 2)3(7 a,b)为THF加成物7 a,b⋅THF或无溶剂7 a,这是不可能的。通过加热熔体中的3 a – c获得。的μ-(苯胺基)二硼烷[H 2 B(μ-PhNH)(μ-H)BH 2 ](4)在反应中观察到3用BH 3 ⋅THF和表征原位。的反应3与PhNH 2(2一)被发现为制备具有潜在一般性的二苯并硼硼烷(PhNH)2 BH(5 a)提供了一种新的便捷方法。该观察结果以及对4 a,5 a和7 a
Transition Metal-Catalyzed Formation of Boron−Nitrogen Bonds: Catalytic Dehydrocoupling of Amine-Borane Adducts to Form Aminoboranes and Borazines
作者:Cory A. Jaska、Karen Temple、Alan J. Lough、Ian Manners
DOI:10.1021/ja030160l
日期:2003.8.1
dehydrocoupling of Me(2)NH.BH(3) was also demonstrated. This new catalytic method was extended to other secondary adducts RR'NH.BH(3) which afforded the dimeric species [(1,4-C(4)H(8))N-BH(2)](2) (2) and [PhCH(2)(Me)N-BH(2)](2) (3) or the monomeric aminoborane (i)Pr(2)N=BH(2) (4) under mild conditions. A new synthetic approach to the linear compounds R(2)NH-BH(2)-NR(2)-BH(3) (5: R = Me; 6: R = 1,4-C(4)H(8)) was
CATALYTIC DEHYDROCOUPLING OF AMINE-BORANE ADDUCTS TO FORM AMINOBORANES AND BORAZINES
作者:Cory A. Jaska、Karen Temple、Alan J. Lough、Ian Manners
DOI:10.1080/10426500490426683
日期:2004.4.1
dimeric [(1,4-C 4 H 8 )N─BH 2 ] 2 (2) and [PhCH 2 (Me)N─BH 2 ] 2 (3) or the monomeric aminoborane i Pr 2 N═BH 2 (4) under mild conditions. The catalytic dehydrocoupling of NH 3 ·BH 3 , MeNH 2 ·BH 3 , and PhNH 2 ·BH 3 at 45°C affords the borazine derivatives [RN─BH] 3 (5: R = H; 6: R = Me; 7:R = Ph). TEM analysis of the contents of the reaction solution for the [Rh(1,5-cod)(μ-Cl)] 2 catalyzed dehydrocoupling
Borazine materials for organic optoelectronic applications
作者:Iona H. T. Sham、Chi-Chung Kwok、Chi-Ming Che、Nianyong Zhu
DOI:10.1039/b504510j
日期:——
Borazine materials have been demonstrated to be a new class of multifunctional and thermally stable materials with high electron (10(-3) cm2 V(-1) s(-1)) and moderate hole (10(-4) cm2 V(-1) s(-1)) mobilities for applications in electroluminescent devices.