Greener Ullmann-type coupling of aryl halides for preparing biaryls using reusable Pd/ZrO2 catalyst

Deepa K. Dumbre; Radhika D. Wakharkar; Vasant R. Choudhary

doi:10.1080/00397910903531805

Greener Ullmann-type coupling of aryl halides for preparing biaryls using reusable Pd/ZrO₂ catalyst

Deepa K. Dumbre, Radhika D. Wakharkar, Vasant R. Choudhary

National Chemical Laboratory India

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

5 Scopus citations

Abstract

Biaryls with excellent yields can be prepared by the Ullmann-type coupling of aryl halides in the presence of potassium carbonate (as a base) and dimethylformamide (as a solvent), at 140°C, using a reusable Pd (2.5wt%)/ZrO₂ catalyst. The product yield of 4-iodoanisole coupling is strongly influenced by the catalyst preparation method, solvent, and base.

Original language	British English
Pages (from-to)	164-169
Number of pages	6
Journal	Synthetic Communications
Volume	41
Issue number	2
DOIs	https://doi.org/10.1080/00397910903531805
State	Published - Jan 2011

Keywords

Aryl halides
biaryls
Pd/ZrO
Ullmann coupling reaction

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title = "Greener Ullmann-type coupling of aryl halides for preparing biaryls using reusable Pd/ZrO2 catalyst",

abstract = "Biaryls with excellent yields can be prepared by the Ullmann-type coupling of aryl halides in the presence of potassium carbonate (as a base) and dimethylformamide (as a solvent), at 140°C, using a reusable Pd (2.5wt%)/ZrO2 catalyst. The product yield of 4-iodoanisole coupling is strongly influenced by the catalyst preparation method, solvent, and base.",

keywords = "Aryl halides, biaryls, Pd/ZrO, Ullmann coupling reaction",

author = "Dumbre, {Deepa K.} and Wakharkar, {Radhika D.} and Choudhary, {Vasant R.}",

note = "Funding Information: V. R. C. is grateful to the National Academy of Sciences (India) for the NASI Senior Scientist Platinum Jubilee Fellowship.",

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T1 - Greener Ullmann-type coupling of aryl halides for preparing biaryls using reusable Pd/ZrO2 catalyst

AU - Dumbre, Deepa K.

AU - Wakharkar, Radhika D.

AU - Choudhary, Vasant R.

N1 - Funding Information: V. R. C. is grateful to the National Academy of Sciences (India) for the NASI Senior Scientist Platinum Jubilee Fellowship.

PY - 2011/1

Y1 - 2011/1

N2 - Biaryls with excellent yields can be prepared by the Ullmann-type coupling of aryl halides in the presence of potassium carbonate (as a base) and dimethylformamide (as a solvent), at 140°C, using a reusable Pd (2.5wt%)/ZrO2 catalyst. The product yield of 4-iodoanisole coupling is strongly influenced by the catalyst preparation method, solvent, and base.

AB - Biaryls with excellent yields can be prepared by the Ullmann-type coupling of aryl halides in the presence of potassium carbonate (as a base) and dimethylformamide (as a solvent), at 140°C, using a reusable Pd (2.5wt%)/ZrO2 catalyst. The product yield of 4-iodoanisole coupling is strongly influenced by the catalyst preparation method, solvent, and base.

KW - Aryl halides

KW - biaryls

KW - Pd/ZrO

KW - Ullmann coupling reaction

UR - http://www.scopus.com/inward/record.url?scp=78650288470&partnerID=8YFLogxK

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JO - Synthetic Communications

JF - Synthetic Communications

IS - 2

ER -

Greener Ullmann-type coupling of aryl halides for preparing biaryls using reusable Pd/ZrO₂ catalyst

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Keywords

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