A convenient, recyclable catalytic synthesis of benzofuran-2-acetic esters 2 by sequential Pd(0)-catalyzeddeallylationdPd(II)-catalyzed carbonylative heterocyclization of 1-(2-allyloxyphenyl)-2-yn-1-ols 1 inionic liquids is presented. Reactions were typically carried out in BmimBF4 as the solvent at 100 C andunder 30 atm of CO, in the presence of catalytic amounts (1 mol %) of PdI2 in conjunction with KI(1 equiv), PPh3 (4 mol %), MeOH (28 equiv), and H2O (2 equiv). The solvent-catalyst system could berecycled several times without appreciable loss of catalytic activity
Tandem catalysis in ionic liquids: a recyclable catalytic synthesis of benzofuran derivatives / Gabriele, Bartolo; Mancuso, R; Lupinacci, E; Salerno, G; Veltri, Lucia. - In: TETRAHEDRON. - ISSN 0040-4020. - 66(2010), pp. 6156-6161.
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Titolo: | Tandem catalysis in ionic liquids: a recyclable catalytic synthesis of benzofuran derivatives |
Autori: | |
Data di pubblicazione: | 2010 |
Rivista: | |
Citazione: | Tandem catalysis in ionic liquids: a recyclable catalytic synthesis of benzofuran derivatives / Gabriele, Bartolo; Mancuso, R; Lupinacci, E; Salerno, G; Veltri, Lucia. - In: TETRAHEDRON. - ISSN 0040-4020. - 66(2010), pp. 6156-6161. |
Handle: | http://hdl.handle.net/20.500.11770/128632 |
Appare nelle tipologie: | 1.1 Articolo in rivista |