Transferreaktionen mit hilfe von bleitetraacetat—V: Eine neue methode zur gewinnung von α-azidosteroidketonen mittels Pb(OAC)4-n(N3)n
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Cited by (20)
Radical azidation as a means of constructing C(sp<sup>3</sup>)-N<inf>3</inf> bonds
2020, Green Synthesis and CatalysisCitation Excerpt :In this Section, other than the classical examples, we also include newly developed reactions, including remote C–H azidation. Early in 1971, Zbiral et al. obtained the allylic azidation product of steroid 5-pregnen-3-ol-20-one acetate with Pb(OAc)4-TMSN3 [36]. In 1987, Moriarty et al. reported an improved reaction using PhIO/NaN3/CH3COOH [37].
Methods for direct alkene diamination, new & old
2012, TetrahedronCitation Excerpt :That diamination in this case proceeds with overall syn-diastereoselectivity has been substantiated by deuterium labeling studies. In a recent extension of their work on the diamination of tethered ureas, Muñiz and co-workers have developed an intermolecular variant of their methodology that features the regioselective transfer of nitrogen from two distinct sources, namely bistosylimide and saccharin, which exclusively takes part in the initial aminopalladation step (Scheme 92).234 Employing bis(benzonitrile)palladium dichloride as the precatalyst and iodosobenzene dipivalate as the terminal oxidant, a wide range of functionalized terminal alkenes 357 undergo addition to generate the corresponding diamines 358 with complete regioselectivity and in excellent yield.
A versatile synthesis of vicinal diazides using hypervalent iodine
1986, Tetrahedron Letters
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Herrn Dr. W. G. Stoll zum 60 Geburtstag in Verehrung gewidmet.