Wiehler isoxazole synthesis

Isoxazoles from condensation of aryl aldehydes and a-nitro-esters. Interestingly, the nitrogen atom at the isoxazole ring comes from the nitro group. 

Cr(CO)3-coordinated hydroquinone from vinylic alkoxy pentacarbonyl chromium carbene complex (Fischer carbene) and alkynes. 

In Advances in Metal-Organic Chemistry Liebeskind, L. S., Ed. JAI Press, Greenwich, CT 1989 Vol. 1. (Review). 

Torrent, M. Catalysis Metal Complexes 2002, 25, 269. 

Radical-mediated ring expansion of 2-haIomethyl cycloalkanones. 

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