K. Tan et al., Racemization processes at a quaternary carbon center in the context of theasymmetric Michael reaction, TETRAHEDR L, 42(30), 2001, pp. 5021-5023
Several examples of racemization process at a quaternary carbon center affe
cting Michael adducts were reported. A brief statement to prevent the occur
rence of the interfering retro-Michael reaction was also presented. (C) 200
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