Patent · US Expired

Phosphorous-containing calixarenes

US5717126A · kind A · utility

8Cited by
1References
11Claims
0Family size

Assignee

Inventors

Key dates

Filing dateAug 7, 1995
Grant dateFeb 10, 1998
Priority date
Expiry dateAug 7, 2015

Classification

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

Abstract

Phosphorus-containing calixarenes of the general formula I ##STR1## and a process for their preparation are described. Additionally, a process for the preparation of aldehydes by the hydroformylation of C.sub.3 -C.sub.20 -olefins by means of rhodium or ruthenium carbonyl complexes, in which the phosphorus-containing calixarenes of the formula I are used as ligands, is described.

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