Boron photochemistry IV. A stable triarylborane from the photolysis of potassium dimesityldiphenylborate
作者:P.J. Grisdale、B.E. Babb、J.C. Doty、T.H. Regan、D.P. Maier、J.L.R. Williams
DOI:10.1016/s0022-328x(00)92639-1
日期:1968.9
ethane/water solution with light in the region of 2537 Å in the presence of air. The products were phenol (VI), 2-hydroxymesitylene (VII), 2,4,6-trimethylbiphenyl (VIII), and (2,4,6-trimethyl-3-biphenylyl)mesitylphenylborane (XI). The structure of XI was determined from spectroscopic data, chemical degradation, and synthesis. We believe the presence of XI as a photoproduct is evidence for the original
我们在有空气的情况下,在2537Å的光下,在1,2-二甲氧基乙烷/水溶液中光解了二甲基苯乙烯基二苯基硼酸钾。产物是苯酚(VI),2-羟基均三甲苯(VII),2,4,6-三甲基联苯(VIII)和(2,4,6-三甲基-3-联苯基)间苯三甲硼烷(XI)。XI的结构由光谱数据,化学降解和合成确定。我们认为,作为光产物的XI的存在是通过硼酸盐的光解而产生的苯基自由基和二甲基苯硼硼烷自由基阴离子的最初证据。基于自由基物质的分子内攻击,我们提出了反应序列以说明反应产物。