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。