Abstract
Intercalation of an in situ prepared [Rh(OH)6]3- complex into an anion exchangeable Ni-Zn layered hydroxy double salt (Rh/NiZn) was demonstrated. The resulting Rh/NiZn effectively catalyzed the 1,4-addition of diverse enones and phenylboronic acids to their corresponding β-substituted carbonyl compounds. In the case of 2-cyclohexen-1-one and phenylboronic acid, a turnover frequency (TOF) of 920 h-1 based on Rh was achieved. The [Rh(OH)6]3- complex maintained its original monomeric trivalent state within the NiZn interlayer following catalysis, attributable to a strong electrostatic interaction between the NiZn host and anionic Rh(III) complex.
Original language | English |
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Pages (from-to) | 4040-4046 |
Number of pages | 7 |
Journal | ACS Catalysis |
Volume | 4 |
Issue number | 11 |
Early online date | 6 Oct 2014 |
DOIs | |
Publication status | Published - 7 Nov 2014 |
Bibliographical note
Funding: Grant-in-Aid for Scientific Research from the Ministry of Education, Culture, Sports, Science, and Technology of Japan (25420824); Photon Factory (KEK-PF, Proposal No. 2012G596; EPSRC (EP/G007594/4); and RoyalSociety (Industry Fellowship).
Keywords
- 1,4-addition
- anion exchange
- intercalation
- Ni-Zn hydroxyl double salt
- rhodium