Patent · US Active

Markovnikov-selective palladium catalyst for carbonylation of alkynes with heteroarenes

US10589263B2 · kind B2 · utility

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1References

2Claims

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Assignee

EVONIK DEGUSSA GMBH · DE

Inventors

Haoquan Li · Bositenghu, CN
Jie Liu · Zhuzhou, CN
Ralf Jackstell · Rostock, DE
Matthias Beller · Ostseebad Nienhagen, DE
Robert Franke · Marl, DE

Key dates

Filing date	Jun 21, 2018
Grant date	Mar 17, 2020
Priority date	—
Expiry date	Sep 25, 2038

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01J2540/40
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

Markovnikov-selective palladium catalyst for carbonylation of alkynes is formed from a bisphosphite having formula (1):The carbonylation catalyst is suited for the preparation of a branched heteroarene-keto product from an alkyne substrate, CO and heterocycle in high yields with low amounts of the linear product.

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