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Foer farand Foer framstaellning av substituerade benzen och bensensulfonyra samt deras derab oct foer foer feer Foer framstaellning av N, N'-substituerade ureafoereningar
Foer farand Foer framstaellning av substituerade benzen och bensensulfonyra samt deras derab oct foer foer feer Foer framstaellning av N, N'-substituerade ureafoereningar
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机译:用于生产取代的苯和苯磺酸及其衍生物,用于生产N,N'-取代的脲化合物
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摘要
A process for the preparation of substituted benzenes or benzenesulfonic acid and its derivatives comprising diazotisation of an aminobenzene or ortho-amino-benzenesulfonic acid derivative followed by homogeneous palladium-catalysed coupling with an olefine and heterogeneous palladium-catalysed hydrogenation of the olefinic substituent, wherein the homogeneous catalyst is reduced and precipitated as metal after the coupling in the reaction mixture and used as a heterogeneous palladium catalyst for the hydrogenation step. The process is particular suitable for the preperation N-benzenesulfon-N'-triazinyl-urea herbicides.
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