Syntheses and structures of benzo-bis(1,3,2-diazaboroles) and acenaphtho-1,3,2-diazaboroles
作者:Lothar Weber、Daniel Eickhoff、Anna Chrostowska、Alain Dargelos、Clovis Darrigan、Hans-Georg Stammler、Beate Neumann
DOI:10.1039/c9dt03818c
日期:——
hydride. Synthesis of the dark-red crystalline 2-bromo-N,N′-bis(diisopropylphenyl)acenaphtho-1,3,2-diazaborole 7 was effected by the cyclocondensation of 1,2-bis(N-2′,6′-diisopropylphenylimino)acenaphthene (5) and boron tribromide with subsequent sodium amalgam reduction of the initially formed burgundy red diazaborolium salt 6. Compounds 4, 6 and 7 are characterised by elemental analyses, 1H, 11B and
无色结晶2,6-二溴-4,8-二甲基-1,3,5,7-四苯基苯并双(二氮杂硼烷)4是由3,6-二甲基-1,2,4,5-四苯基氨基苯3d与两个环缩合形成的当量在氢化钙存在下的三溴化硼。暗红色结晶的2-溴-N,N'-双(二异丙基苯基)ac-1,3,2-二氮杂硼酸酯7的合成是通过1,2-双(N -2',6'-二异丙基苯基亚氨基)ac(5)和三溴化硼,随后形成最初的勃艮第红色重氮硼硼盐6的钠汞齐还原。化合物4,6元素分析,1 H,11 B和13 C NMR光谱,以及单X射线衍射研究,对7和7进行了表征。的电子结构4,6和7都受到DFT计算。