Dimethyl gold acetylacetonate

The approach comprises deposition-precipitation (DP) of Au(OH)3 onto the hydroxide surfaces of metal oxide supports from an alkaline solution of HAUCI4 [26] and grafting of organo gold complexes such as dimethyl gold (Ill)acetylacetonate (hereafter denoted as Au acac complex) [27] and Au(PPh3)(N03) [28] either in gas and liquid phase are advantageous in that a variety of metal oxides commercially available in the forms of powder, sphere, honeycomb can be used as supports. 

Highly active gold catalysts can be prepared by an appropriate selection of preparation methods such as CP, DP, DR, and SG with dimethyl Au(III) acetylacetonate, depending on the kind of support materials and reactions... 

Gold could be deposited on porous coordination polymers (PCPs) as clusters and nanoparticles smaller than 5 mn by grinding dimethyl Au(III) acetylacetonate with PCPs. In particular, on Al-containing PCP, the mean diameter of Au was minimized to 1.6 mu. These tiny Au clusters exhibit markedly high catalytic activity and selectivity in A-alkylation of amine with alcohol under N2. 

Figure 11.7 Possible pathways for the formation of gold clusters and NPs by solid grinding of dimethyl acetylacetonate Au(lll) ((CH3)2Au(acac)) with alkaline treated TS-1 and TS-1. (Reproduced with permission from Elsevier [62].)...

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