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Por favor, use este identificador para citar o enlazar este documento: https://ria.asturias.es/RIA/handle/123456789/6722
Título : Pd-Catalyzed autotandem C-C/C-C bond forming reactions with tosylhydrazones: Synthesis of spirocycles with extended π-conjugation
Autor : Valdés, Carlos
Cabal, María-Paz
Valencia, Rocio A.
Barroso, Raquel
Palabras clave : Tosylhydrazone
Auto-tandem reaction
Fecha de publicación : 18-abr-2014
Resumen : A new Pd-catalyzed auto-tandem process is presented by the reaction of tosylhydrazones of cyclic ketones and 2,2’-dibromobiphenyls and related systems. The process involves cross-coupling with tosylhydrazone followed by an intra-molecular Heck reaction and gives rise to spirocyclic structures. Noteworthy, two C-CAr bonds are formed on the hy-drazonic carbon during the process. Depending on the starting dibromide, an array of spiro fluorenes, spiro dibenzo-fluorenes, spiro acridines. and spiro anthracenes have been prepared. Thus, this methodology may be applied for the preparation of interesting structures useful in the development of optoelectronic materials.
URI : https://ria.asturias.es/RIA/handle/123456789/6722
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