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N-(2-bromoallyl)-N-methylaniline 1 is easily converted into the propargylamine-zirconocene complex 3 via loss of methane from 2-[zirconocene(methyl)]allyl amine 2. Regioselective insertion reactions with alkenes and benzophenone afford, after iodinolysis, products 4 -10.
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Barluenga et al. (1995) studied this question.
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