Thiol and disulfide derivatives of ephedrine have been shown previously to catalyse in high enantiomeric excess (ee) the reaction of diethyl zinc with benzaldehyde. We find that this reaction involves non-linear correlations between the ee of product and catalyst. Osmotic measurements indicate a high degree of aggregation of the zinc thiolates. The behaviour of the thiol derivatives deviates sharply from that of the oxygen analogue, N-methyl ephedrine.
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UNIV GRONINGEN,DEPT ORGAN & MOLEC INORGAN CHEM,9747 AG GRONINGEN,NETHERLANDSUNIV GRONINGEN,DEPT ORGAN & MOLEC INORGAN CHEM,9747 AG GRONINGEN,NETHERLANDS
HOF, RP
POELERT, MA
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UNIV GRONINGEN,DEPT ORGAN & MOLEC INORGAN CHEM,9747 AG GRONINGEN,NETHERLANDSUNIV GRONINGEN,DEPT ORGAN & MOLEC INORGAN CHEM,9747 AG GRONINGEN,NETHERLANDS
POELERT, MA
PEPER, NCMW
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UNIV GRONINGEN,DEPT ORGAN & MOLEC INORGAN CHEM,9747 AG GRONINGEN,NETHERLANDSUNIV GRONINGEN,DEPT ORGAN & MOLEC INORGAN CHEM,9747 AG GRONINGEN,NETHERLANDS
PEPER, NCMW
KELLOGG, RM
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UNIV GRONINGEN,DEPT ORGAN & MOLEC INORGAN CHEM,9747 AG GRONINGEN,NETHERLANDSUNIV GRONINGEN,DEPT ORGAN & MOLEC INORGAN CHEM,9747 AG GRONINGEN,NETHERLANDS
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UNIV GRONINGEN,DEPT ORGAN & MOLEC INORGAN CHEM,9747 AG GRONINGEN,NETHERLANDSUNIV GRONINGEN,DEPT ORGAN & MOLEC INORGAN CHEM,9747 AG GRONINGEN,NETHERLANDS
HOF, RP
POELERT, MA
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h-index: 0
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UNIV GRONINGEN,DEPT ORGAN & MOLEC INORGAN CHEM,9747 AG GRONINGEN,NETHERLANDSUNIV GRONINGEN,DEPT ORGAN & MOLEC INORGAN CHEM,9747 AG GRONINGEN,NETHERLANDS
POELERT, MA
PEPER, NCMW
论文数: 0引用数: 0
h-index: 0
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UNIV GRONINGEN,DEPT ORGAN & MOLEC INORGAN CHEM,9747 AG GRONINGEN,NETHERLANDSUNIV GRONINGEN,DEPT ORGAN & MOLEC INORGAN CHEM,9747 AG GRONINGEN,NETHERLANDS
PEPER, NCMW
KELLOGG, RM
论文数: 0引用数: 0
h-index: 0
机构:
UNIV GRONINGEN,DEPT ORGAN & MOLEC INORGAN CHEM,9747 AG GRONINGEN,NETHERLANDSUNIV GRONINGEN,DEPT ORGAN & MOLEC INORGAN CHEM,9747 AG GRONINGEN,NETHERLANDS