Citation:
LIU Xin-Ming, CUI Yuan-Chen, ZHANG Lei, ZHAO Xiao-Wei. Synthesis of PADC-Pd and Its Catalytic Properties for Heck Reaction[J]. Chinese Journal of Applied Chemistry,
;2006, 23(11): 1286-1290.
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Reaction of a resin PADC containing N,O,and S multifunctional groups with a PdCl2 solution produced a newtype of PADC-Pd catalyst,and its structure was confirmed with XPS,TG,and DTA.Thermal analysis showsed that the catalyst is stable at up to 280℃.PADC-Pd is an efficient catalyst and Heck arylations of acrylic acid or styrene with iodoarenes can be performed in the presence of a small amount of the catalyst in air,and substituted trans-cinnamic acid or trans-stilbene can be obtained.In the presence of PADC-Pd,Heck arylation of acrylic acid with iodobenzene could be carried out efficiently at a low temperature(85℃) and the yield was 95%,which indicated the high catalytic activity of PADC-Pd.The catalyst could be used repeatedly for 8 cycles after simple washing,and the yield was up to 81% at the 6th cycle.But the catalytic activity decreased with the cycle,which was probably due to leaching of palladium into the solvent.
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Keywords:
- PADC,
- palladium,
- supported catalyst,
- Heck reaction
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