Patent · US Active

Method for producing bispyrrolidine compounds

US11345680B2 · kind B2 · utility

0Cited by

2References

7Claims

0Family size

Assignee

BASF SE

Inventors

Rainer Klopsch · Worms, DE
Hannes Ferdinand Zipfel · Ludwigshafen, DE
Alvaro GORDILLO BOLONIO · Ludwigshafen am Rhein, DE

Key dates

Filing date	Nov 13, 2018
Grant date	May 31, 2022
Priority date	—
Expiry date	Nov 13, 2038

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07D403/12
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

The present application relates to a method for preparing compounds of the formula I in which, in a first step, γ-butyrolactone is reacted with diamines of the formula II to form bisamides of the formula Ill, with the amide function of the bisamides of the formula Ill then undergoing partial or complete catalytic hydrogenation in step II) to form bispyrrolidine compounds of the formula I.

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