Patent · US Active

Process for preparing phosphorus-containing alpha-aminonitriles

US10822358B2 · kind B2 · utility

0Cited by

6References

20Claims

0Family size

Assignee

BASF SE

Inventors

Gunter Karig
Frank MEMMEL · Guntersblum, DE
Mark James Ford · Nordenstadt, DE

Key dates

Filing date	Jun 20, 2018
Grant date	Nov 3, 2020
Priority date	—
Expiry date	Jun 20, 2038

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07F9/3211
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

The present invention relates primarily to processes for preparing particular phosphorus-containing α-aminonitriles of the formulae (Ia) and (Ib) defined hereinafter from corresponding phosphorus-containing cyanohydrin esters and to the use thereof for preparation of glufosinate or of glufosinate salts. The present invention further relates to a process for preparing glufosinate or glufosinate salts.

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