Patent · US Expired

Method for hydroformylation, xanthene-bridged ligands and catalyst comprising a complex of said ligands

US6881867B2 · kind B2 · utility

8Cited by

3References

6Claims

0Family size

Assignee

BASF SE

Inventors

Wolfgang Ahlers · Worms, DE
Dag Wiebelhaus · Neustadt, DE
Rocco Paciello · Bad Dürkheim, DE
Michael Bartsch · Neustadt, DE
Robert Baumann · Mannheim, DE
Dieter Vogt · Braunschweig, DE
Alison Hewat · Eindhoven, NL

Key dates

Filing date	Sep 17, 2001
Grant date	Apr 19, 2005
Priority date	—
Expiry date	Sep 17, 2021

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01J2531/845
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.