Sulfated Zirconia as an Efficient Catalyst for Sulfonylamidomethylation of Benzylsulfonamides and 2-Phenylethanesulfonamides: Effect of Catalyst Thermal Treatment

Autor:	Alicia S. Cánepa, Marco Antonio Ocsachoque, Rodolfo D. Bravo, M. Gloria González, Leandro D. Sasiambarrena, Leticia J. Mendez
Rok vydání:	2010
Předmět:	Chemistry Catalyst support Inorganic chemistry General Chemistry Thermal treatment Heterogeneous catalysis Catalyst poisoning Catalysis law.invention Chemical engineering law Cubic zirconia Calcination Selectivity
Zdroj:	Catalysis Letters. 138:180-186
ISSN:	1572-879X 1011-372X
DOI:	10.1007/s10562-010-0389-x
Popis:	The synthesis of 3,4-dihydro-1H-2,3-benzothiazine 2,2-dioxides and 1,2,4,5-tetrahydro-3,2-benzothiazepine 3,3-dioxides is studied using sulfated zirconia as catalyst. The sulfated zirconia calcined at 550 °C achieved a high selectivity which is attributed to the formation of a tetragonal phase. In addition, the catalyst can be reused up to three times without loss of its catalytic activity.
Databáze:	OpenAIRE
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