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In one fell swoop: the reaction of alkynylallyl alcohols with aryl halides in the presence of [Pd(PPh3)2Cl2] under Heck reaction conditions provides cyclic γ,δ-enals (see scheme). This reaction serves as the starting sequence for the one-pot synthesis of diene esters and β-amino-substituted tetrahydrofurans.
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Kressierer et al. (2004) studied this question.
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