The reaction of the aminohaloboranes (Me2N)(R)BX (1) (a: R = Ph, X = Cl; b: R = Me, X = Br; c: R = iPr, X = Cl) with the di-Grignard reagent (BrMg)2CH2 in ethyl ether/benzene mixtures afforded the diborylmethanes [(Me2N)(R)B]2CH2 (2) (a: R = Ph; b: R = Me; c: R = iPr), which were subsequently converted into the corresponding bis(chloroboryl)methanes [(Cl)(R)B]2CH2 (3) (a: R = Ph; b: R = Me; c: R =
氨基卤代
硼烷 (Me2N)(R)BX (1) (a: R = Ph, X = Cl; b: R = Me, X = Br; c: R = iPr, X = Cl) 与二-
乙醚/苯混合物中的
格氏试剂 (BrMg)2CH2 得到二
硼基
甲烷 [(Me2N)(R)B]2CH2 (2)(a:R = Ph;b:R = Me;c:R = iPr)随后转化为相应的双(
氯硼基)
甲烷 [(Cl)(R)B]2CH2 (3)(a:R = Ph;b:R = Me;c:R = iPr)。3a–c 与 1,2-
二异丙基肼的碱辅助环缩合反应得到 1,2-
二异丙基-1,2-二氮杂-3,5-二有机-3,5-二
硼烷 (4) (a: R = Ph; b: R = Me;c:R = iPr)。衍
生物4a用双(三甲基甲
硅烷基)酰胺
钾去质子化,得到(1,2-
二异丙基-1,2-二氮杂-3,5
-二苯基-3,5-二
硼烷基)
钾(5)。尝试通过用
碘或