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Demonstrates distinct outcomes of trialkylaluminium additions in nitrodienes and nitroenynes, indicating potential in organic synthesis.
The first highly enantioselective and regiodivergent conjugate addition of trialkylaluminium reagents to nitrodienes and nitroenynes is described. By a design of the substrate and a fine-tuning of the reaction conditions, it is possible to selectively form the 1,4- or 1,6-adduct. The same combination of catalyst, copper source, and a ferrocene-based phosphine ligand afforded enantioselectivities up to 95% and 91%, respectively.
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Tissot et al. (2010) studied this question.
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