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Synthesis of η6-(Heteroarene)tricarbonylchromium Complexes under Ethyl Formate Catalysis

M. Prokešová and Š. Toma

Department of Organic Chemistry, Faculty of Natural Sciences, Comenius University, SK-842 15 Bratislava

 

Abstract: The direct complexation of eight various heterocycles with Cr(CO)6 under ethyl formate catalysis was studied. Higher or comparable yields of complexes were reached in less than 4.25 h time in comparison with published uncatalyzed procedures which need long reaction time. This method failed in the case of N-methylpyrrole, furan, and 4-amino-2-methylquinoline. When benzoxazole and benzimidazole were complexed, the main products did not have the desired structure.

Full paper in Portable Document Format: 475a314.pdf

 

Chemical Papers 47 (5) 314–316 (1993)

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