Not salen, but salan: A new dinucleating salan-type ligand 1 was developed for the enantioselective decarboxylative 1,4-addition of malonic acid half-thioester to nitroalkenes. A Ni/La/1 complex gave products in 99–40 % yield and 94–66 % ee.
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Furutachi et al. (2010) studied this question.
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