| abstract |
The invention discloses a supported cluster catalyst and its preparation and application, wherein the molecular formula of the supported cluster catalyst is: Au 1 Ag 24 /ZnO or Au 12 Ag 32 /ZnO; wherein Au 1 Ag 24 cluster The molecular formula is Au 1 Ag 24 (SPhMe 2 ) 18 (PPh 4 ), abbreviated as Au 1 Ag 24 ; the molecular formula of Au 12 Ag 32 cluster is Au 12 Ag 32 (SPhF 2 ) 30 (PPh 4 ) 4 , abbreviated as Au 12 Ag 32 . The Au 1 Ag 24 /ZnO and Au 12 Ag 32 /ZnO catalysts of the present invention can catalyze the alkynylation reaction of trifluoromethyl ketone with high yield, the reaction conditions are mild, the catalyst can be recycled at least five times, and the substrate is universal wider. |