TY - JOUR
T1 - Spatially isolated palladium in porous organic polymers by direct knitting for versatile organic transformations
AU - Wang, Xinbo
AU - Min, Shixiong
AU - Das, Swapan Kumar
AU - Fan, Wei
AU - Huang, Kuo-Wei
AU - Lai, Zhiping
N1 - KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: Financial support was provided by KAUST competitive grant URF/1/1723, Saudi Arabia.
PY - 2017/10/3
Y1 - 2017/10/3
N2 - We report here a direct knitting Method for preparation of highly robust, effective while air- and moisture-tolerant, and readily recyclable three-dimensional (3D) porous polymer-Pd network (PPPd) from the widely used Pd(PPh3)4. Electro-beam induced Pd atom crystallization was observed for the first time in organic polymer and revealed the ultrafine dispersion of palladium atoms. Challenging types of Suzuki-Miyaura couplings, reductive coupling of aryl halides and oxidative coupling of arylboronic acid were successively catalyzed by PPPd in aqueous media. Also catalytically selective CH functionalization reactions were achieved with orders of magnitude more efficient than conventional Pd homogeneous catalysts. The strategy developed here provides a practical method for easy-to-make yet highly efficient heterogeneous catalysis.
AB - We report here a direct knitting Method for preparation of highly robust, effective while air- and moisture-tolerant, and readily recyclable three-dimensional (3D) porous polymer-Pd network (PPPd) from the widely used Pd(PPh3)4. Electro-beam induced Pd atom crystallization was observed for the first time in organic polymer and revealed the ultrafine dispersion of palladium atoms. Challenging types of Suzuki-Miyaura couplings, reductive coupling of aryl halides and oxidative coupling of arylboronic acid were successively catalyzed by PPPd in aqueous media. Also catalytically selective CH functionalization reactions were achieved with orders of magnitude more efficient than conventional Pd homogeneous catalysts. The strategy developed here provides a practical method for easy-to-make yet highly efficient heterogeneous catalysis.
UR - http://hdl.handle.net/10754/625825
UR - http://www.sciencedirect.com/science/article/pii/S0021951717303226
UR - http://www.scopus.com/inward/record.url?scp=85030259558&partnerID=8YFLogxK
U2 - 10.1016/j.jcat.2017.08.030
DO - 10.1016/j.jcat.2017.08.030
M3 - Article
SN - 0021-9517
VL - 355
SP - 101
EP - 109
JO - Journal of Catalysis
JF - Journal of Catalysis
ER -