Cu-Based Nanoalloys in the Base-Free Ullmann Heterocyle-Aryl Ether Synthesis

Autoria(s): Engels, V.; Benaskar, F.; Patil, N.; Rebrov, Evgeny; Hessel, V.; Hulshof, L.A.; Jefferson, D.A.; Vekemans, J.A.J.M.; Karwal, S.; Schouten, J.C.; Wheatley, A.E.H.
Data(s)

21/05/2010
Resumo

We report the first liquid-liquid Ullmann etherification process mediated not only by oxidatively stable Cu but also by CuZn and CuSn nanoparticle catalysts in conjunction with microwave heating that also avoids the use of solid and expensive bases. Conditions have led to improved turnovers and excellent yields in heteroaromatic Ullmann-type coupling reactions. Further enhancement is achieved upon the addition of 18-crown-6 as a kinetic promoter.
Identificador

http://pure.qub.ac.uk/portal/en/publications/cubased-nanoalloys-in-the-basefree-ullmann-heterocylearyl-ether-synthesis(3d33325c-6c5b-48a6-be03-0e11f569120e).html

http://dx.doi.org/10.1021/op9003423
Idioma(s)

eng
Direitos

info:eu-repo/semantics/restrictedAccess
Fonte

Engels , V , Benaskar , F , Patil , N , Rebrov , E , Hessel , V , Hulshof , L A , Jefferson , D A , Vekemans , J A J M , Karwal , S , Schouten , J C & Wheatley , A E H 2010 , ' Cu-Based Nanoalloys in the Base-Free Ullmann Heterocyle-Aryl Ether Synthesis ' Organic Process Research & Development , vol 14 , no. 3 , pp. 644-649 . DOI: 10.1021/op9003423
Palavras-Chave #/dk/atira/pure/subjectarea/asjc/1600/1605 #Organic Chemistry #/dk/atira/pure/subjectarea/asjc/1600/1606 #Physical and Theoretical Chemistry
Tipo

article
Acesso ao item digital