Technical Notes:
1.Catalyst for the asymmetric Michael addition of a, a-disubstituted aldehydes to maleimides .
2.Used in the enantioselective synthesis of trans dihydrobenzofurans via intramolecular Michael addition.
3.Organocatalyst for the enantioselective direct vinylogous aldol reaction of 3-methyl 2-cyclohexen-1-one with a-keto esters.
4.Organocatlyst for enantioselective F riedel-Crafts alkylations of furans.
5.Catalyst for the regio- and diastereodivergent 4+2 cycloadditions with cyclic 2,4-Dienones.
Strem