ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

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)