Journal of the American Chemical Society

Chromyl complexes in the direct epoxidation of alkenes

N Miyaura, JK Kochi

Index: Miyaura, N.; Kochi, J. K. Journal of the American Chemical Society, 1983 , vol. 105, # 8 p. 2368 - 2378

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Citation Number: 36

Abstract

Abstract: Alkenes such as (E)-and (Z)-8-methylstyrene are converted stereospecifically by dinitratodioxochromium (VI), or chromyl nitrate, to the corresponding epoxide with high selectivities in aprotic media under rather mild conditions. The presence of the cosolvents, N, N-dimethylformamide (DMF), acetone, pyridine, etc., is critical for effective epoxidation with this reagent. In DMF and pyridine, the epoxide remains generally intact, but in ...