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1.
J Org Chem ; 77(6): 2942-6, 2012 Mar 16.
Artigo em Inglês | MEDLINE | ID: mdl-22339085

RESUMO

With the direct use of allylic alcohols as allylating agents, the Friedel-Crafts-type allylic alkylation of nitrogen-containing aromatic compounds catalyzed by a [Mo(3)S(4)Pd(η(3)-allyl)] cluster is achieved. With a 3 mol % catalyst loading in acetonitrile at reflux or 60 °C, a variety of N,N-dialkylanilines and indoles reacted smoothly with allylic alcohols to afford the Friedel-Crafts-type allylation products in good to excellent yields with high levels of regioselectivity.


Assuntos
Indóis/química , Molibdênio/química , Nitrogênio/química , Paládio/química , Alquilação , Catálise , Estrutura Molecular , Propanóis , Estereoisomerismo
2.
J Am Chem Soc ; 130(46): 15250-1, 2008 Nov 19.
Artigo em Inglês | MEDLINE | ID: mdl-18954139

RESUMO

The reactions of [Cp*Fe(mu-SR1)3FeCp*] (Cp* = eta5-C5Me5; R1 = Et, Me) with 1.5 equiv R2NHNH2 (R2 = Ph, Me) give the mu-eta2-diazene diiron thiolate-bridged complexes [Cp*Fe(mu-SR1)2(mu-eta2-R2N NH)FeCp*], along with the formation of PhNH2 and NH3. These mu-eta2-diazene diiron thiolate-bridged complexes exhibit excellent catalytic N-N bond cleavage of hydrazines under ambient conditions.


Assuntos
Hidrazinas/química , Compostos de Ferro/química , Ferro/química , Modelos Biológicos , Nitrogenase/química , Nitrogenase/metabolismo , Enxofre/química , Biocatálise , Metilação , Modelos Moleculares , Estrutura Molecular , Ligação Proteica
3.
Org Lett ; 12(12): 2726-9, 2010 Jun 18.
Artigo em Inglês | MEDLINE | ID: mdl-20469923

RESUMO

A highly efficient and regioselective allylation reaction of amines and active methylene compounds directly using allylic alcohols under mild conditions catalyzed by the novel cubane-type sulfido [(Cp*Mo)(3)(mu(3)-S)(4)Pd(eta(3)-allyl)][PF(6)](2) clusters has been developed. A variety of allylic alcohols and nucleophiles including amines and active methylene compounds are investigated, and in the case of allylic alcohols bearing substituents at either the alpha- or gamma-position only linear products are obtained.

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