A catalyst, useful for the hydroformylation of allyl alcohol, is described. The catalyst comprises a rhodium complex and a 6-bis(3,5-dialkylphenyl)phosphino-N-pivaloyl-2-aminopyridine or a 3-bis(3,5-dialkylphenyl)phosphino-2H-isoquinolin-1-one. The invention also includes a process for the production of 4-hydroxybutyraldehyde comprising reacting allyl alcohol with a mixture of carbon monoxide and hydrogen in the presence of a solvent and the catalyst. The process gives a high ratio of the linear product 4-hydroxybutyraldehyde to the branched co-product 3-hydroxy-2-methylpropionaldehyde.
-
Page/Page column 6-7
(2010/09/09)
Self-assembly of bidentate ligands for combinatorial homogeneous catalysis based on an A-T base-pair model
The odd couple: Inspired by the principle of DNA base pairing a conceptually new approach for the generation of a heterobidentate-ligand library based on self-assembly through hydrogen-bonding is realized. From a 4 x 4 library a catalyst that shows outstanding activity and excellent regioselectivity could be identified (see scheme; FGR = functional group, Do = donor group). (Chemical Equation Presented)
Breit, Bernhard,Seiche, Wolfgang
p. 1640 - 1643
(2007/10/03)
Hydroformylation
The present invention relates to a process for hydroformylating in the presence of a catalyst comprising at least one complex of a metal of transition group VIII with mono-phosphorus compounds which are capable of dimerizing via noncovalent bonds as ligands, to such catalysts and to their use.
-
Page 20
(2010/02/08)
More Articles about upstream products of 851542-17-1