Organic compounds -- part of the class 532-570 series – Organic compounds – Four or more ring nitrogens in the bicyclo ring system
Patent
1995-07-26
1999-07-06
Shah, Mukund J.
Organic compounds -- part of the class 532-570 series
Organic compounds
Four or more ring nitrogens in the bicyclo ring system
544224, 544242, 544315, 544316, 544333, 544334, 544335, 544360, 544364, 544395, 544405, 544409, 544403, 544410, 546302, 546303, 546261, 546239, 546259, 5462687, 546286, 546192, 5462697, 546339, 546345, 546193, C07D21326, C07D23930
Patent
active
059199300
ABSTRACT:
Process for cross-coupling aromatic boron compounds with aromatic halogen compounds or perfluoroalkylsulfonates.
In a process for preparing polycyclic aromatic compounds by cross-coupling aromatic boron compounds with aromatic halogen compounds or perfluoroalkylsulfonates under palladium catalysis in the presence of at least one water-soluble complex ligand, the reaction medium comprises an aqueous and an organic phase and the palladium is added in the form of a palladium compound soluble in the organic phase.
Polycyclic aromatic compounds can thus be prepared economically and in very good yields and simultaneously very high purity, in particular without contamination by the complexing ligands.
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Haber Steffen
Manero Javier
Hoechst Aktiengesellschaft
Rao Deepak R.
Shah Mukund J.
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