93370-92-4Relevant academic research and scientific papers
Gold-catalyzed [4+2] Annulations of Dienes with Nitrosoarenes as 4 π Donors: Nitroso-Povarov Reactions
Chen, Ching-Nung,Liu, Rai-Shung
, p. 9831 - 9835 (2019/07/04)
This work reports the first success of the nitroso-Povarov reaction, involving gold-catalyzed [4+2] annulations of nitrsoarenes with substituted cyclopentadienes. In this catalytic sequence, nitrosoarenes presumably attack gold-π-dienes by a 1,4-addition pathway, generating allylgold nitrosonium intermediates to complete an intramolecular cyclization. Acyclic dienes are also applicable substrates, and affording oxidative nitroso-Povarov products.
Alkenyl-copper derivatives 20. Preparation of polysubstituted conjugated dienes by coupling of alkenyl halides with alkenyl copper reagents
Jabri, N.,Alexakis, A.,Normant, J.F.
, p. 332 - 338 (2007/10/02)
Magnesio associated vinyl-copper derivatives, obtained by carbocupration of terminal alkynes, couple with 1-halo-1-elkenes, in the presence of Pd(PPh3)4 as catalyst, to afford polysubstituted conjugated dienes in high yield and excellent stereoisomeric purity.
VINYL-COPPER DERIVATIVES 15 : AN EFFICIENT SYNTHESIS OF POLYSUBSTITUTED CONJUGATED DIENES
Jabri, N.,Alexakis, A,Normat, J. F.
, p. 1589 - 1592 (2007/10/02)
Magnesium vinyl-copper derivatives, obtained by carbocupration of terminal alkynes, couple with 1-halo-1-alkenes, in the presence of Pd(PPh3)4 catalyst, to afford polysubstituted conjugated dienes in high yield and excellent stereoisomeric purity.
