Novel Synthesis of 1,5-Benzodiazepines Catalyzed by Silica-Supported Dodecatungstophosphoric Acid

A. Navarro-Vázquez; M. Abdollahi-Alibeik; D. Rodríguez; I. Mohammadpoor-Baltork; M. Martínez-Esperón; B. H. Yousefi; A. García A. García; C. Saá; D. Domínguez

doi:10.3390/ecsoc-10-01406

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Novel Synthesis of 1,5-Benzodiazepines Catalyzed by Silica-Supported Dodecatungstophosphoric Acid

A. Navarro-Vázquez

¹,

M. Abdollahi-Alibeik

^{*

1},

D. Rodríguez

¹,

I. Mohammadpoor-Baltork

²,

M. F. Martínez-Esperón

¹,

B. H. Yousefi

³,

A. García A. García

^{*

1},

C. Saá

¹,

D. Domínguez

^{*

1}

¹ Department of Chemistry, Yazd University, Yazd 89195-741, Iran
² Department of Chemistry, Isfahan University, Isfahan 81746-73441, Iran
³ Department of Nuclear Medicine, Munich University of Technology, Ismaninger Strasse 22, 81675 München, Deutschland

Published: 30 November 2006 by MDPI in The 10th International Electronic Conference on Synthetic Organic Chemistry session General Organic Synthesis

https://doi.org/10.3390/ecsoc-10-01406

Abstract: Silica supported 12-tungstophosphoric acid catalyzes efficiently the reaction of o-phenylenediamines with ketones under solvent-free condition to afford the corresponding 1,5-benzodi-azepines in good yields. The catalyst can be recovered by simple filtration and reused.

Keywords: n/a

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