Patent · US Expired

Phosphabenzene compounds and their use in hydroformylation

US6509505B1 · kind B1 · utility

0Cited by

2References

9Claims

0Family size

Assignee

BASF SE

Inventors

Rocco Paciello · Bad Dürkheim, DE
Thomas Mackewitz · Mannheim, DE
Michael Roper · Monsheim, DE
Bernhard Breit · Gundelfingen, DE

Key dates

Filing date	Sep 11, 2001
Grant date	Jan 21, 2003
Priority date	—
Expiry date	Sep 11, 2021

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01J2531/822
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

Phosphabenzene compounds of the formula (I) where the radicals R1 to R13 are, independently of one another, hydrogen, COOM, SO3M, NR3X, NR2, OR, COOR or SR (where M=hydrogen, NH4 or alkali metal, X=anion, R=hydrogen or C1-C6-alkyl), or C1-C12-alkyl, C6-C12-aryl, C7-C12-aralkyl, C7-C12-alkaryl or C3-C6-heteroaromatics, where the alkyl, aryl, alkaryl and aralkyl radicals may bear the abovementioned radicals as substituents and two or more of the radicals may be joined to form aliphatic or fused-on rings, where at least one of the radicals R4 and R8 and at least one of the radicals R9 and R13 is not hydrogen, can be used for preparing hydroformylation catalysts.

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