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| Type |
Poster Presentation |
| Area |
Organic Chemistry |
| Room No. |
Event Hall |
| Time |
4월 19일 (목요일) 11:00~12:30 |
| Code |
ORGN.P-555 |
| Subject |
Synthesis of bimetallic nanocatalyst Pd-Pt-Fe3O4 and its application to aryl halide silylation |
| Authors |
Sangmoon Byun, Sunwoo Lee1,*, Byeong Moon Kim*
Division of Chemistry, Seoul National University, Korea
1Department of Chemistry, Chonnam National University, Korea
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| Abstract |
Recently, we have developed a new bimetallic Pd-Pt-Fe3O4 catalytic system for the reduction of nitroarenes. It was found that this catalyst showed better activity in the reduction of nitroarenes compared to either of the monometallic catalysts. Based on these results, we employed the bimetallic catalyst Pd-Pt-Fe3O4 toward the coupling reaction with aryl halides and hydrosilanes.
Transition metal-catalyzed silylations have typically been facilitated by the use of homogeneous non-recyclable catalytic systems. Herein, the first example of a recyclable catalytic system for the synthesis of arylsilanes is reported, which utilizes the bimetallic complex Pd-Pt-Fe3O4 nanoparticles. Various arylsilanes were prepared from the reaction of aryl iodides or aryl bromides through the use of hydrosilanes. This methodology shows decent functional group tolerance toward ester, ketone, aldehyde, nitro, and cyano groups. It was interesting to note that the bimetallic Pd-Pt-Fe3O4 catalytic system exhibits better activity than monometallic catalysts Pt-Fe3O4 or Pd-Fe3O4. In addition, the bimetallic Pd-Pt-Fe3O4 catalytic system could be readily recovered and reused for over twenty cycles
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| E-mail |
bsm816@snu.ac.kr |
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121st General Meeting of the KCS