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- W1971013428 abstract "The [Pd(cod)2]-catalysed reaction of buta-1,3-diene with secondary amines (morpholine, piperidine, diethylamine, or dimethylamine) affords octa-2,7-dienylamines, the highest yields being obtained with the cyclic amines. However, treatment of buta-1,3-diene with acetic acid-diethylamine in the presence of [Pd(cod)2](cod = cyclo-octa-1,5-diene) affords an improved yield of the diethylamine C8 adduct. The addition of 1 mol of PPh3 per mol of Pd has only a small effect on the above reactions. The addition of acetic acid to buta-1,3-diene is catalysed by [Pd(cod)2] to give octa-2,7-dienyl acetate and 1-vinylhex-5-enyl acetate in the ratio of 4 : 1. The [Pd(cod)2]-catalysed reaction of isoprene with morpholine affords as the major product the tail-to-tail amine adduct. The specificity of this reaction is improved by the addition of 1 mol of PPh3. The system [Pd(cod)2]–PPh3 catalyses the addition of acetaldehyde to buta-1,3-diene to form 2-methyl-3,6-divinyltetrahydropyran. With phenyl isocyanate, piperidones are formed. Reaction of buta-1,3-diene with morpholine in the presence of [Pt(cod)2] gives only octa-1,3,6-triene; however, addition of the co-catalyst Al(OPrt)3 or Al(OBut)3 leads to the formation of the octadienylamine adducts. Telomerisation of buta-1,3-diene with acetic acid catalysed by [Pt(cod)2] gives selectively octa-2,7-dienyl acetate. Possible mechanisms for these reactions are discussed." @default.
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- W1971013428 date "1978-01-01" @default.
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- W1971013428 title "Oligomerisation and telomerisation of buta-1,3-diene catalysed by bis-(η-cyclo-octa-1,5-diene)-palladium and -platinum" @default.
- W1971013428 doi "https://doi.org/10.1039/dt9780000309" @default.
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