Coordination-Driven Terpyridyl Phosphine Pd(II) Gels
Incorporation of phosphine‐Pd catalytic centers in gel network is an important strategy to develop highly active catalysts. In this contribution we show that catalytically active phosphine‐Pd(II) gels can be readily obtained via reaction of rigid bridging terpyridyl phosphines and Pd(II). The terpyr...
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Published in | Chinese journal of chemistry Vol. 33; no. 1; pp. 141 - 146 |
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Main Authors | , , |
Format | Journal Article |
Language | English |
Published |
Weinheim
WILEY-VCH Verlag
01.01.2015
WILEY‐VCH Verlag Wiley Wiley Subscription Services, Inc |
Subjects | |
Online Access | Get full text |
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Summary: | Incorporation of phosphine‐Pd catalytic centers in gel network is an important strategy to develop highly active catalysts. In this contribution we show that catalytically active phosphine‐Pd(II) gels can be readily obtained via reaction of rigid bridging terpyridyl phosphines and Pd(II). The terpyridyl phosphines, Py2P2 and Py2P, contain one 4,2′:6′,4′ ′‐terpyridyl group and two/one diphenylphosphino groups. Reactions of Py2P2/Py2P and Pd(II) in CHCl3‐MeOH afforded the corresponding phosphine‐Pd(II) gels at room temperature or at elevated temperature (40°C). The gelation is driven by formation of metal‐organic coordination. Mild heating is important in triggering the formation of Py2P‐Pd(II) gel. The gels have a coherent, rigid spongy porous network of continuous nanometer‐sized particles. The phosphine‐Pd(II) gels showed high activity in the Suzuki‐Miyaura reactions of aryl bromides under ambient conditions and could be recycled and reused.
Coordination‐driven phosphine‐Pd(II) gels have been prepared from rigid bridging terpyridyl phosphines and Pd(II), which show high activity in the Suzuki‐Miyaura coupling under ambient conditions. |
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Bibliography: | the National Natural Science Foundation of China - No. 21273007 and 21350110212 istex:0C89765EFA3D58800FDDC93AD136D9DAFEDE812F Program for New Century Excellent Talents in University - No. NCET-13-0615 the Fundamental Research Funds for the Central Universities - No. 14lgpy05 ArticleID:CJOC201400479 ark:/67375/WNG-5XSTNS23-M |
ISSN: | 1001-604X 1614-7065 |
DOI: | 10.1002/cjoc.201400479 |