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Synthetic Communications
An International Journal for Rapid Communication of Synthetic Organic Chemistry
Volume 40, 2010 - Issue 12
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Original Articles

Synthesis of Benzimidazoles and Benzoxazoles Using Palladium Bis(2,2,6,6-tetramethyl-3,5-heptanedionate) as a Novel Catalyst

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Pages 1743-1749 | Received 02 Apr 2009, Published online: 17 May 2010
 

Abstract

Structurally well-defined palladium bis(2,2,6,6-tetramethyl-3,5-heptanedionate) complex is reported to be an efficient catalyst for the synthesis of benzimidazole and benzoxazole derivatives in good yields. A novel approach for one-pot synthesis of benzimidazoles via direct reductive amination and N-arylation followed by hydrogenation–cyclization methodology is also described.

Notes

a Reaction conditions as given in the Experimental section.

b Isolated yield.

a GC yield.

a GC yield.

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