期刊
ADVANCED SYNTHESIS & CATALYSIS
卷 356, 期 8, 页码 1803-1810出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adsc.201400091
关键词
amino acids; asymmetric phase-transfer catalysis; cobalt; Michael addition; Schiff bases
资金
- RFBR [13-03-92601-KO-a, 14-03-31262, 13-03-90600-ARM-a]
- Royal Society [13-03-92601-KO-a]
- Russian Academy Presidium [P-8]
Stereochemically inert and positively charged chiral complexes of cobalt(III) prepared from Schiff bases derived from chiral diamines and salicylaldehydes were shown to be efficient catalysts of the benchmark asymmetric phase-transfer Michael addition of nine activated olefins to O'Donnell's substrate. The reaction products had enantiomeric purities of up to 96%. DFT calculations were invoked to rationalize the stereochemistry of the addition.
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