Selective Oxidative Carbonylation of Aniline to Diphenylurea with Ionic Liquids

Nanette Zahrtmann; Carmen Claver; Cyril Godard; Anders Riisager; Eduardo J. Garcia-Suarez

doi:10.1002/cctc.201800004

Selective Oxidative Carbonylation of Aniline to Diphenylurea with Ionic Liquids

Nanette Zahrtmann, Carmen Claver, Cyril Godard, Anders Riisager, Eduardo J. Garcia-Suarez

Tecnalia Research & Innovation

Research output: Contribution to journal › Article › peer-review

10 Citations (Scopus)

Abstract

A catalytic system for the selective oxidative carbonylation of aniline to diphenylurea based on Pd complexes in combination with imidazolium ionic liquids is presented. Both oxidants, Pd complexes, and ionic liquids affect the activity of the reaction, and the choice of oxidant determines the selectivity of the reaction. Together they allow the reaction to proceed under comparatively mild conditions without a loss of activity. Examination of the reaction by use of in situ NMR spectroscopy allowed us to observe an intermediate suggested only previously, which supported the proposed mechanism.

Original language	English
Pages (from-to)	2450-2457
Number of pages	8
Journal	ChemCatChem
Volume	10
Issue number	11
DOIs	https://doi.org/10.1002/cctc.201800004
Publication status	Published - 7 Jun 2018

Keywords

carbonylation
ionic liquids
oxidation
palladium
reaction mechanisms

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10.1002/cctc.201800004

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title = "Selective Oxidative Carbonylation of Aniline to Diphenylurea with Ionic Liquids",

abstract = "A catalytic system for the selective oxidative carbonylation of aniline to diphenylurea based on Pd complexes in combination with imidazolium ionic liquids is presented. Both oxidants, Pd complexes, and ionic liquids affect the activity of the reaction, and the choice of oxidant determines the selectivity of the reaction. Together they allow the reaction to proceed under comparatively mild conditions without a loss of activity. Examination of the reaction by use of in situ NMR spectroscopy allowed us to observe an intermediate suggested only previously, which supported the proposed mechanism.",

keywords = "carbonylation, ionic liquids, oxidation, palladium, reaction mechanisms",

author = "Nanette Zahrtmann and Carmen Claver and Cyril Godard and Anders Riisager and Garcia-Suarez, {Eduardo J.}",

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T1 - Selective Oxidative Carbonylation of Aniline to Diphenylurea with Ionic Liquids

AU - Zahrtmann, Nanette

AU - Claver, Carmen

AU - Godard, Cyril

AU - Riisager, Anders

AU - Garcia-Suarez, Eduardo J.

PY - 2018/6/7

Y1 - 2018/6/7

N2 - A catalytic system for the selective oxidative carbonylation of aniline to diphenylurea based on Pd complexes in combination with imidazolium ionic liquids is presented. Both oxidants, Pd complexes, and ionic liquids affect the activity of the reaction, and the choice of oxidant determines the selectivity of the reaction. Together they allow the reaction to proceed under comparatively mild conditions without a loss of activity. Examination of the reaction by use of in situ NMR spectroscopy allowed us to observe an intermediate suggested only previously, which supported the proposed mechanism.

AB - A catalytic system for the selective oxidative carbonylation of aniline to diphenylurea based on Pd complexes in combination with imidazolium ionic liquids is presented. Both oxidants, Pd complexes, and ionic liquids affect the activity of the reaction, and the choice of oxidant determines the selectivity of the reaction. Together they allow the reaction to proceed under comparatively mild conditions without a loss of activity. Examination of the reaction by use of in situ NMR spectroscopy allowed us to observe an intermediate suggested only previously, which supported the proposed mechanism.

KW - carbonylation

KW - ionic liquids

KW - oxidation

KW - palladium

KW - reaction mechanisms

UR - http://www.scopus.com/inward/record.url?scp=85045006099&partnerID=8YFLogxK

U2 - 10.1002/cctc.201800004

DO - 10.1002/cctc.201800004

M3 - Article

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VL - 10

SP - 2450

EP - 2457

JO - ChemCatChem

JF - ChemCatChem

IS - 11

ER -

Selective Oxidative Carbonylation of Aniline to Diphenylurea with Ionic Liquids

Abstract

Keywords

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