Title of article
A novel ZrO2–SO42− supported palladium catalyst for syntheses of disubstituted ureas from amines by oxidative carbonylation
Author/Authors
Shi، نويسنده , , Feng and Deng، نويسنده , , Youquan and SiMa، نويسنده , , Tianlong and Yang، نويسنده , , Hongzhou، نويسنده ,
Issue Information
هفته نامه با شماره پیاپی سال 2001
Pages
3
From page
2161
To page
2163
Abstract
The syntheses of disubstituted ureas by carbonylation of a series of amines in the presence of a sulfate modified zirconia supported palladium catalyst was investigated at an initial total pressure of 4.0 MPa and 135°C. High conversions and yields were achieved for the synthesis of symmetric dialkylureas. This supported catalyst could also be easily separated and recovered after reaction.
Journal title
Tetrahedron Letters
Serial Year
2001
Journal title
Tetrahedron Letters
Record number
1643783
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