BibTex format
@article{Griffiths:2017:10.1021/acs.inorgchem.7b01011,
author = {Griffiths, K and Tsipis, AC and Kumar, P and Townrow, OPE and Abdul-Sada, A and Akien, GR and Baldansuren, A and Spivey, AC and Kostakis, GE},
doi = {10.1021/acs.inorgchem.7b01011},
journal = {INORGANIC CHEMISTRY},
pages = {9563--9573},
title = {3d/4f Coordination Clusters as Cooperative Catalysts for Highly Diastereoselective Michael Addition Reactions},
url = {http://dx.doi.org/10.1021/acs.inorgchem.7b01011},
volume = {56},
year = {2017}
}
RIS format (EndNote, RefMan)
TY - JOUR
AB - Michael addition (MA) is one of the most well studied chemical transformation in synthetic chemistry. Here, we report the synthesis and crystal structures of a library of 3d/4f coordination clusters (CCs) formulated as [ZnII2YIII2L4(solv)X(Z)Y] and study their catalytic properties toward the MA of nitrostyrenes with barbituric acid derivatives. Each CC presents two borderline hard/soft Lewis acidic ZnII centers and two hard Lewis acidic YIII centers in a defect dicubane topology that brings the two different metals into a proximity of ∼3.3 Å. Density functional theory computational studies suggest that these tetrametallic CCs dissociate in solution to give two catalytically active dimers, each containing one 3d and one 4f metal that act cooperatively. The mechanism of catalysis has been corroborated via NMR, electron paramagnetic resonance, and UV–vis. The present work demonstrates for the first time the successful use of 3d/4f CCs as efficient and high diastereoselective catalysts in MA reactions.
AU - Griffiths,K
AU - Tsipis,AC
AU - Kumar,P
AU - Townrow,OPE
AU - Abdul-Sada,A
AU - Akien,GR
AU - Baldansuren,A
AU - Spivey,AC
AU - Kostakis,GE
DO - 10.1021/acs.inorgchem.7b01011
EP - 9573
PY - 2017///
SN - 0020-1669
SP - 9563
TI - 3d/4f Coordination Clusters as Cooperative Catalysts for Highly Diastereoselective Michael Addition Reactions
T2 - INORGANIC CHEMISTRY
UR - http://dx.doi.org/10.1021/acs.inorgchem.7b01011
UR - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000408302800021&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR - http://hdl.handle.net/10044/1/52121
VL - 56
ER -