Aerobic, Chemoselective Oxidation of Alcohols to Carbonyl Compounds Catalyzed by a DABCO-Copper Complex under Mild Conditions
作者:Sreedevi Mannam、S. Kumar Alamsetti、G. Sekar
DOI:10.1002/adsc.200700213
日期:2007.10.8
efficient catalytic system for the selective oxidation of benzylic and allylic alcohols into the corresponding carbonyl compounds at room temperature where molecular oxygen acts as an ultimate, stoichiometric oxidant and water is the only by-product. The solid-state structure determination of the DABCO-copper complex shows that the copper is in the +II oxidation state with trigonal bipyramidal geometry
DABCO-氯化铜(I)络合物(5 mol%)和TEMPO(5 mol%)在硝基甲烷中的溶剂已被用作有效的催化体系,用于在室温下将苄醇和烯丙醇选择性氧化为相应的羰基化合物分子氧充当最终化学计量氧化剂的温度,水是唯一的副产物。对DABCO-铜配合物的固态结构测定表明,铜处于+ II氧化态,具有三角双锥体几何形状,并且由于强的氢键作用而存在于线性聚合物结构中。