Patent · US Expired

Production of optically active phospholanes

US6632953B1 · kind B1 · utility

1Cited by

3References

8Claims

0Family size

Assignee

BASF SE

Inventors

Rainer Stürmer · Bad Dürkheim, DE
Armin Börner · Rostock, DE
Jens Holz · Kessin, DE
Gudrun Voss · Rostock, DE

Key dates

Filing date	Nov 15, 2000
Grant date	Oct 14, 2003
Priority date	—
Expiry date	Nov 15, 2020

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01J2531/847
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

Phospolanes and diphospholanes of the general formula I where:is H, C1-C6-aryl, alkylaryl, SiR32,R2 is alkyl or aryl,A is H, C1-C6-alkyl, aryl, Cl or B is a linker with 1-5 C atoms between the two P atoms, and their use as catalyst in asymmetric synthesis.

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