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Citation: HU Rong-Hua, XIA Jun, CAI Ming-Zhong. Synthesis and Catalytic Property of a Silica-Supported Sulfur, Phosphine Mixed Bidentate Palladium Complex[J]. Chinese Journal of Applied Chemistry, ;2003, 20(3): 254-257. shu

Synthesis and Catalytic Property of a Silica-Supported Sulfur, Phosphine Mixed Bidentate Palladium Complex

1.
a Institute of Chemistry, Jiangxi Normal University, Nanchang 330027;
2.
b Department of Chemistry, Jinggangshan Teachers' College, Ji'an

Corresponding author: CAI Ming-Zhong,
Received Date: 4 September 2002
Available Online: 17 December 2002
Fund Project: 江西省自然科学基金资助项目(010314) (010314)

A fumed silica-supported sulfur, phosphine mixed bidentate palladium complex (‘Si’-S,P-Pd) has been synthesized by reaction of poly-4-thia-6-diphenylpho sphinohexylsiloxane(‘Si’-S,P) with palladium chloride in acetone at 60℃ for 72 h and characterized by elemental analysis and X-ray photoelectron spectrometry. A possible structure pattern of the polymeric palladium complex has been proposed. The results show that in the presence of a catalytic amount of the title complex the amidation and the butoxycarbonylation of aryl halides under atmospheric pressure of carbon monoxide (Heck carbonylation) proceed smoothly to give the corresponding substituted N-phenylbenzamides and butyl benzoates in good yields. The reactivities of aryl iodides are obviously higher than that of corresponding aryl bromides. The polymeric palladium catalyst can be regenerated and reused without serious loss of its activity.
- silica-supported palladium catalyst,
- mixed bidentate polymer ligand,
- Heck carbonylation,
- aryl halide
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