SteroidsU 0300 DOI: 10.1002/chin.201241199

Convenient Method for the Functionalization of the 4- and 6-Positions of the Androgen Skeleton. — Under dirhodium catalysis R—OH insertion occurs at the carbenoid site of vinyldiazo steroids. Under silver catalysis, insertion is observed at the vinylogous position [cf. products (III) and (VI)]. — (MORTON, D.; DICK, A. R.; GHOSH, D.; DAVIES*, H. M. L.; Chem. Commun. (Cambridge) 48 (2012) 47, 5838-5840, http://dx.doi.org/10.1039/c2cc31973j ; Dep. Chem., Emory Univ., Atlanta, GA 30322, USA; Eng.) — G. Mueller

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