A convenient preparation method for synthesizing formamidine utilizing sulfated zirconia

Chiu Hsun Lin; Chih Hsiang Tsai; Han Chung Chang

doi:10.1007/s10562-005-7942-z

A convenient preparation method for synthesizing formamidine utilizing sulfated zirconia

Chiu Hsun Lin, Chih Hsiang Tsai, Han Chung Chang

Department of Chemistry

Research output: Contribution to journal › Article

17 Citations (Scopus)

Abstract

Sulfated zirconia is able to effectively catalyze the reaction between aniline and trimethyl orthoformate to produce formamidine with a product yield of 97% at 313K. N-phenylformimidate is proposed as the reaction intermediate, which reacts further with aniline to produce formamidine. Less degree of acid sites poisoning by the reaction mixture due to the weaker acidity of sulfated zirconia as well as its mesoporosity seem to play important role in this catalyzed reaction.

Original language	English
Pages (from-to)	135-140
Number of pages	6
Journal	Catalysis Letters
Volume	104
Issue number	3-4
DOIs	https://doi.org/10.1007/s10562-005-7942-z
Publication status	Published - 2005 Nov 1

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All Science Journal Classification (ASJC) codes

Catalysis
Chemistry(all)

Cite this

Lin, C. H., Tsai, C. H., & Chang, H. C. (2005). A convenient preparation method for synthesizing formamidine utilizing sulfated zirconia. Catalysis Letters, 104(3-4), 135-140. https://doi.org/10.1007/s10562-005-7942-z

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AB - Sulfated zirconia is able to effectively catalyze the reaction between aniline and trimethyl orthoformate to produce formamidine with a product yield of 97% at 313K. N-phenylformimidate is proposed as the reaction intermediate, which reacts further with aniline to produce formamidine. Less degree of acid sites poisoning by the reaction mixture due to the weaker acidity of sulfated zirconia as well as its mesoporosity seem to play important role in this catalyzed reaction.

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10.1007/s10562-005-7942-z