Synthesis of substituted benzofurans by the tandem one-pot intramolecular carbolithiation-cyclization-substitution sequence

A convenient methodology for the synthesis of 3-sustituted-2,3- dihydrobenzofurans was developed based on the tandem intramolecular carbolithiation-cyclization of 2-bromophenyl-3-phenylprop-2-enyl ether, followed by trapping of the new lithiated intermediate by suitable electrophiles. Several electr...

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Autor principal: Rodríguez, C.
Otros Autores: Nudelman, N.S
Formato: Capítulo de libro
Lenguaje:Inglés
Publicado: 2014
Acceso en línea:Registro en Scopus
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100 1 |a Rodríguez, C. 
245 1 0 |a Synthesis of substituted benzofurans by the tandem one-pot intramolecular carbolithiation-cyclization-substitution sequence 
260 |c 2014 
270 1 0 |m Nudelman, N.S.; Departamento de Química Orgánica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Pabellón 2, C1428EGA Buenos Aires, Argentina; email: nudelman@qo.fcen.uba.ar 
506 |2 openaire  |e Política editorial 
504 |a Vázquez A.J.De Waisbaum R.G.Nudelman, N.S., Organolithiums as useful synthetic intermediates for tandem reactions (2006) The Chemistry of Organolithium Compounds, pp. 63-137. , John Wiley & Sons: New York 
504 |a Hogan, A.M.L., O'Shea, D.F., (2008) Chem. Commun., 33, pp. 3839-3851 
504 |a Girard, A.-L., Lhermet, R., Fressigné, C., Durandetti, M., Maddaluno, J., (2012) Eur. J. Org. Chem., pp. 2895-2905 
504 |a Clayden, J., (2002) Organolithium Selective for Synthesis;, 23. , Tetrahedron Organic Chemistry: Oxford 
504 |a Mealy, M.J., Bailey, W.F., (2002) J. Organomet. Chem., 646, pp. 59-67 
504 |a Kizirian, J.-C., (2008) Chem. Rev., 108, pp. 140-205 
504 |a Garća, G.V., Nudelman, N.S., (2003) Org. Prep. Proced. Int., 35, pp. 447-500 
504 |a Nudelman, N.S., Garća, G.V., (2001) J. Org. Chem., 66, pp. 1387-1394 
504 |a Sefkow, M., (2003) Synthesis, pp. 2595-2625 
504 |a Bailey, W.F., Punzalan, E.R., (1996) Tetrahedron Lett., 37, pp. 5435-5436 
504 |a Newcomb, M., Choi, S.-Y., Horner, J.H., (1999) J. Org. Chem., 64, pp. 1225-1231 
504 |a Bodineau, N., Nudelman, N.S., Garća, G.V., Mattalia, J.-M., Martins, R., Arbelot, M., Chanon, M., (2002) Arkivoc, pp. 139-150 
504 |a Garcia, G., (2002), PhD Thesis, Universidad de Buenos Aires Buenos Aires; Rodŕguez, C., Vázquez, A.J., Nudelman, N.S., (2010) J. Phys. Org. Chem., 23, pp. 978-984 
504 |a Boche, G., Schimeczek, M., Cioslowski, J., Piskorz, P., (1998) Eur. J. Org. Chem., pp. 1851-1860 
504 |a Ribéreau, P., Delamare, M., Célanire, S., Quéguiner, G., (2001) Tetrahedron Lett., 42, pp. 3571-3573 
504 |a Shriver, D.F., Drezdzon, M.A., (1986) The Manipulation of Air-Sensitive Compounds, p. 336. , 2nd ed.; John Wiley and Sons: New York 
504 |a Nudelman, N.S., Garća Liñares, G.E., (2000) J. Org. Chem., 65, pp. 1629-1635 
504 |a Bodineau, N., Mattalia, J.-M., Thimokhin, V., Handoo, K., Négrel, J.-C., Chanon, M., (2000) Org. Lett., 2, pp. 2303-2306 
520 3 |a A convenient methodology for the synthesis of 3-sustituted-2,3- dihydrobenzofurans was developed based on the tandem intramolecular carbolithiation-cyclization of 2-bromophenyl-3-phenylprop-2-enyl ether, followed by trapping of the new lithiated intermediate by suitable electrophiles. Several electrophiles were tested, affording good to excellent yields. Alkyl bromides show better results than chlorides and when doubly halogenated alkyl chains are used as electrophiles only one position reacts, affording substituted benzofurans conveniently functionalized to undergo further reactions. The performance of both butyl and phenyllithium as lithiating agents was examined. [Supplementary materials are available for this article. Go to the publisher's online edition of Synthetic Communications® for the following free supplemental resource(s): Full experimental and spectral details.] © 2014 Taylor and Francis Group, LLC.  |l eng 
593 |a Departamento de Química Orgánica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Pabellón 2, C1428EGA Buenos Aires, Argentina 
690 1 0 |a ALKYLATION 
690 1 0 |a BENZOFURANS 
690 1 0 |a INTRAMOLECULAR CARBOCYCLIZATION 
690 1 0 |a INTRAMOLECULAR CARBOLITHIATION 
690 1 0 |a ORGANOLITHIUM 
700 1 |a Nudelman, N.S. 
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