2026-06-21T22:00:32Zhttps://riubu.ubu.es/oai/requestoai:riubu.ubu.es:10259/42752022-04-29T12:02:48Zcom_10259_3593com_10259_5086com_10259_2604col_10259_3594
Formal [4 + 1] Cycloadditions of β,β-Diaryl-Substituted ortho-(Alkynyl)styrenes through Gold(I)-Catalyzed Cycloisomerization Reactions
Sanjuán Cortázar, Ana María
Virumbrales Ortiz, Cintia
García García, Patricia
Fernández Rodríguez, Manuel A.
Sanz Díez, Roberto
Gold(I)-catalyzed cycloisomerization of β,β-diaryl-o-(alkynyl)-
styrenes at 80 °C selectively yields dihydroindeno[2,1-a]indenes in a
transformation that encompasses a formal [4 + 1] cycloaddition and takes
place through a cascade 5-endo-cyclization−diene activation−iso-Nazarov
cyclization. In addition, by performing the reaction at 0 °C, the same
substrates exclusively give rise to benzofulvene derivatives, which have also been shown to be intermediates in the formation of
the tetracyclics.
2016-11-21
2017-03-04
2016-03
info:eu-repo/semantics/article
1523-7060
http://hdl.handle.net/10259/4275
eng
ORGANIC LETTERS. 2016, V. 18, n. 5, p. 1072–1075
http://dx.doi.org/10.1021/acs.orglett.6b00191
info:eu-repo/semantics/openAccess
American Chemical Society