RT info:eu-repo/semantics/article
T1 Straightforward Synthesis of Dihydrobenzo[a]fluorenes through Au(I)-Catalyzed Formal [3 + 3] Cycloadditions
A1 García García, Patricia
A1 Rashid, Muhammad A.
A1 Sanjuán Cortázar, Ana María
A1 Fernández Rodríguez, Manuel A.
A1 Sanz Díez, Roberto
K1 Química orgánica
K1 Chemistry, Organic
AB Dihydrobenzo[a]fluorene derivatives have been prepared by a formal intramolecular [3 + 3] cycloaddition of o-alkynylstyrenes bearing a secondary alkyl group at the β-position of the styrene moiety. The process, catalyzed by a cationic gold(I) complex, involves a 1,2-hydride migration as the key step. 6,11-Dihydro-5H-benzo[a]fluorenes could be obtained from the initially generated 6,6a-dihydro-5H-benzo[a]fluorenes by subsequent heating of the reaction mixture under gold(I) or Brønsted acid catalysis or directly by conducting the reactions at high temperature
PB American Chemical Society
SN 1523-7060
YR 2012
FD 2012-09
LK http://hdl.handle.net/10259/3866
UL http://hdl.handle.net/10259/3866
LA eng
NO MICINN and FEDER (CTQ2010-15358 and CTQ2009-09949/BQU) and Junta de Castilla y Leon (BU021A09 and GR-172) for financial support. A.M.S. thanks Junta de Castilla y Leon (Consejeria de Educacion) and Fondo Social Europeo for a PIRTU contract. M.A.R. thanks MEC for a "Young Foreign Researchers" contract (SB2009-0186). P.G.-G. and M.A.F.-R. thank MICINN for "Juan de la Cierva" and "Ramon y Cajal" contracts
DS Repositorio Institucional de la Universidad de Burgos
RD 23-nov-2024