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[摘要]:The catalytic homogeneous oxidn. of cyclododecane with hydrogen peroxide in the presence of tetrabutylammonium salts of iron-substituted Keggin-type polyoxotungstates (TBA)4HzXW11Fe(H2O)O39譶H2O (X = P, Si, B, and z = 0-2) is described. In the reaction conditions reported, the corresponding alc., ketone, and hydroperoxide are obtained as the main reaction products. The catalytic activity of the anions with phosphorous, silicon, and boron is compared in different reaction conditions. These catalytic oxidn. reactions seem to be radical processes, since they are totally inhibited in the presence of I2, a known radical scavenger. |
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