An effective cis-β-octahedral Mn(iii) SALPN catalyst for the Mukaiyama–Isayama hydration of α,β-unsaturated esters†‡
Paul S.
Donnelly, 
*a
Michael
Ricca,
a
Angus
Robertson,
a
Jonathan M.
White
a
and
Mark A.
Rizzacasa
*a
*a
Michael
Ricca,
a
Angus
Robertson,
a
Jonathan M.
White
a
and
Mark A.
Rizzacasa
*a
Abstract
Two cis-β-MnIIISALPN catalysts were synthesised and tested in the Mukaiyama–Isayama hydration of α,β-unsaturated esters. The MnIIIEtOSALPN(acac) complex 7 is the most active and catalyses hydration with little or no detectable undesired alkene reduction. This catalyst is superior for alkene hydration compared to the originally reported Mn(dpm)3 catalyst.
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