US 10,589,263 B2Granted

Markovnikov-selective palladium catalyst for carbonylation of alkynes with heteroarenes

AssigneeEvonik Degussa GmbH

InventorsHaoquan Li, Jie Liu, Ralf Jackstell, Matthias Beller, Robert Franke

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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.

Claims2

Dependent claims

Compound having the structure (1):

Dependencies are inferred from the claim text.

Facts

Application: 16/014,115Filed 21 Jun 2018
Priority: EP 1717859529 Jun 2017
Published: US 2019/0001316 A13 Jan 2019
Granted: 17 Mar 2020
Term ends: Not estimatedThe source records don’t support an estimate.

Classification13 codes

B01J 31/24
Containing coordination complexes: phosphines , i.e. phosphorus bonded to only carbon atoms, or to both carbon and hydrogen atoms, including e.g.…
B01J 31/181
The ligands containing nitrogen: cyclic ligands, including e.g. non-condensed polycyclic ligands, comprising at least one complexing nitrogen atom…
B01J 31/2234
At least two oxygen atoms present in one at least bidentate or bridging ligand: beta-dicarbonyl ligands, e.g. acetylacetonates
B01J 31/2409
Cyclic ligands, including e.g. non-condensed polycyclic ligands, the phosphine-P atom being a ring member or a substituent on the ring: with more…

Family

US 2019/0001316 A1Pre-grant publication · published 3 Jan 2019
US 10,589,263 B2This patent

From the US filing history. Foreign family members aren’t listed.

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