作者:Rico Thorwirth、Franziska Bernhardt、Achim Stolle、Bernd Ondruschka、Jila Asghari
DOI:10.1002/chem.201001702
日期:2010.11.22
for the direct oxidation of anilines to the corresponding azo and azoxy homocoupling products by using a planetary ball mill was developed. Various oxidants and grinding auxiliaries were tested and a variety of substituted anilines were investigated. It was possible to form chemoselectively either azo, azoxy, or the nitro compounds from reaction of aromatic anilines. The selectivity of the solvent‐free
开发了一种无溶剂方法,可通过使用行星式球磨机将苯胺直接氧化为相应的偶氮和乙氧基均偶联产物。测试了各种氧化剂和研磨助剂,并研究了各种取代的苯胺。从芳族苯胺的反应中可以化学选择性地形成偶氮、,氧基或硝基化合物。通过结合使用氧化剂和研磨助剂,可以改变无溶剂反应的选择性。此外,与其他能量输入方法(微波,经典加热和超声波)的比较突出显示了球磨机方法的优势及其高能效。