Synthesis, characterization and thermolysis of phosphinite–borane adducts: investigation of an unusual thermally-induced phenol elimination reaction
作者:Eric Rivard、Alan J. Lough、Ian Manners
DOI:10.1039/b202361j
日期:2002.7.19
The synthesis, characterization and thermolytic behavior of a new class of phosphinite–borane adducts containing the bulky 2,4,6-t-Bu3C6H2O (Mes*O) group is reported, including the description of the first example of a primary phosphinite–borane adduct isolable at room temperature (Mes*O)PH2·BH31. Adduct 1 and the phenylated derivative (Mes*O)PhPH·BH33 formed highly cross-linked solids, 7 and 8, when
报道了一种新型的,庞大的2,4,6-t-Bu 3 C 6 H 2 O(Mes * O)基团的次膦酸酯-硼烷加合物的合成,表征和热解行为,包括对第一个实例的描述在室温下(Mes * O)PH 2 ·BH 3 1可分离的次膦酸酯-硼烷加合物的合成。当分别加热到100和140°C时,加合物1和苯基化衍生物(Mes * O)PhPH·BH 3 3形成高度交联的固体7和8。通过固体和固体对这些固体进行表征溶液核磁共振 光谱学表明脱氢偶联(H 2消除)和Mes * OH消除同时发生,从而得到复杂的产物[(Mes * O)x RPH y –BH (2 x + 2 y + z) ] n(R = H或Ph,x + y + z = 1)。三次加合物(Mes * O)Ph 2 P·BH 3 5和亚磷酸酯–硼烷(PhO)3 P·BH 3 6被发现在高温下通过PB键断裂而分解,而没有形成相应的苯酚。这些结果表明,由1和3引起的Mes