497845-92-8Relevant academic research and scientific papers
Some uses of mischmetall in organic synthesis
Lannou, Marie-Isabelle,Hélion, Florence,Namy, Jean-Louis
, p. 10551 - 10565 (2007/10/03)
Mischmetall, an alloy of the light lanthanides, has been used in a variety of organic reactions, either as a coreductant in samarium(II)-mediated reactions (Barbier and Grignard-type reactions, pinacolic coupling reactions) or as the promoter of Reformatsky-type reactions. It has been also employed as the starting material for easy syntheses of lanthanide trihalides, the reactivity of which has been explored in Imamoto and Luche-Fukuzawa reactions and in Mukaiyama aldol reactions.
Barbier/Grignard-type allylation or benzylation mediated by the mischmetall/SmI2(cat.) system
Di Scala, Aurore,Garbacia, Stefania,Helion, Florence,Lannou, Marie-Isabelle,Namy, Jean-Louis
, p. 2989 - 2995 (2007/10/03)
Barbier- and Grignard-type allylation and benzylation have been achieved by the use of samarium diiodide in catalytic amounts together with mischmetall (an alloy of the light lanthanides) as a coreductant. Plausible catalytic schemes are proposed. In addition, organocerium and -lanthanum reagents have been obtained from samarium diiodide catalysed reactions between organic halides and cerium or lanthanum metal, giving a new route to organolanthanoid compounds. It also appears that trivalent benzyl and allyl organometallic compounds of cerium and lanthanum are much more stable than the corresponding samarium ones. Wiley-VCH Verlag GmbH, 69451 Weinheim, Germany, 2002.
