Stereoselective C,C-bond formation. Cyclizations of biradicals*
نویسندگان
چکیده
However, for reactions between two radicals, which occur with diffusion-controlled rates, one cannot expect that substituents induce stereoselectivity. We have now shown that this changes in reactions of photolytically generated biradicals: Both the singlet and the triplet biradicals can react with high stereoselectivity, but the outcome of the reactions depends upon the multiplicity of the biradical.
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