Abstract:
The invention relates to a method for the hydroformylation of ethylenically unsaturated compounds, whereby at least one complex of a metal of subgroup VIII is used as the hydroformylation catalyst, having at least one compound containing phosphorus, arsenic, or antimony as a ligand. Each compound comprises two groups having a P, As, or Sb atom and at least two other heteroatoms, said groups being bound to a xanthene-type molecular structure. The invention also relates to novel compounds of this type and catalysts comprising at least one complex of a metal of subgroup VIII having at least one such compound as a ligand.
Abstract:
In a process for the hydroformylation of ethylenically unsaturated compounds, at least one complex of a metal of transition group VIII. with at least one phosphorus-, arsenic- or antimony-containing compound as ligand is used as hydroformylation catalyst, where the compound used as ligand in each case comprises two groups which comprise a P, As or Sb atom and at least two further hetero atoms and are bound to a xanthene-like molecular framework. New compounds of this type and catalysts which comprise at least one complex of a metal of transition group VIII. with at least one such compound as ligand are also provided.
Abstract:
The invention relates to a method for the hydroformylation of ethylenically unsaturated compounds, whereby at least one complex of a metal of subgroup VIII is used as the hydroformylation catalyst, having at least one compound containing phosphorus, arsenic, or antimony as a ligand. Each compound comprises two groups having a P, As, or Sb atom and at least two other heteroatoms, said groups being bound to a xanthene-type molecular structure. The invention also relates to novel compounds of this type and catalysts comprising at least one complex of a metal of subgroup VIII having at least one such compound as a ligand.
Abstract:
IN A PROCESS FOR THE HYDROFORMYLATION OF ETHYLENICALLY UNSATURATED COMPOUNDS, AT LEAST ONE COMPLEX OF A METAL OF TRANSITION GROUP VIII. WITH AT LEAST ONE PHOSPHORUS-, ARSENIC-OR ANTIMONY-CONTAINING COMPOUND AS LIGAND IS USED AS HYDROFORMYLATION CATALYST, WHERE THE COMPOUND USED AS LIGAND IN EACH CASE COMPRISES TWO GROUPS WHICH COMPRISE A P, AS OR SB ATOM AND AT LEAST TWO FURTHER HETERO ATOMS AND ARE BOUND TO A XANTHENE-LIKE MOLECULAR FRAMEWORK. NEW COMPOUNDS OF THIS TYPE AND CATALYSTS WHICH COMPRISE AT LEAST ONE COMPLEX OF A METAL OF TRANSITION GROUP VIII. WITH AT LEAST ONE SUCH COMPOUND AS LIGAND ARE ALSO PROVIDED.
Abstract:
In a process for the hydroformylation of ethylenically unsaturated compounds, at least one complex of a metal of transition group VIII. with at least one phosphorus-, arsenic- or antimony-containing compound as ligand is used as hydroformylation catalyst, where the compound used as ligand in each case comprises two groups which comprise a P, As or Sb atom and at least two further hetero atoms and are bound to a xanthene-like molecular framework. New compounds of this type and catalysts which comprise at least one complex of a metal of transition group VIII. with at least one such compound as ligand are also provided.
Abstract:
Production of adiponitrile from butadiene and hydrogen cyanide uses a catalyst comprising a Group VIII metal complex having at least one tricyclic bifunctional phosphorus, arsenic or antimony ligand. Production of adiponitrile by: (a) reacting butadiene with hydrogen cyanide in the presence of a catalyst, (b) optionally catalytically isomerizing the resulting mixture of pentenonitriles to covert branched nitriles to linear nitriles, and (c) reacting the nitrile mixture with hydrogen cyanide in the presence of a catalyst comprises performing steps (a), (b) and/or (c) in the presence of a catalyst comprising a Group VIII metal complex having at least one ligand of formula (I). A , A = O, Si, SiRR, NR or CRR; R = H, alkyl, cycloalkyl, heterocycloalkyl, aryl or heteroaryl; Y , Y = groups comprising one or more P, As or Sb atoms, each directly bonded to at least two O, S or NR' heteroatoms; R' = H, alkyl, cycloalkyl or aryl; R -R = R, COOR', COOM, SO2R', SO3M, N(R')2, N(R')3 X , OR', SR', (CHR''CH2O)xR', (CH2NR')xR', (CH2CH2NR')xR', halogen, CF3, NO2, acyl or CN, or R and/or R can form fused ring systems with 1-3 rings; R = H, Me or Et; M = a cation; X = an anion; x = 1-120. An Independent claim is also included for a process for isomerizing branched aliphatic monoalkenonitriles to linear aliphatic monoalkenonitriles using such a catalyst.