Abstract
A kinetic study of DNA-based catalytic enantioselective Friedel-Crafts alkylation and Michael addition reactions showed that DNA affects the rate of these reactions significantly. Whereas in the presence of DNA, a large acceleration was found for the Friedel-Crafts alkylation and a modest acceleration in the Michael addition of dimethyl malonate, a deceleration was observed when using nitromethane as nucleophile. Also, the enantioselectivities proved to be dependent on the DNA sequence. In comparison with the previously reported Diels-Alder reaction, the results presented here suggest that DNA plays a similar role in both cycloaddition and conjugate addition reactions.
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