292607-11-5Relevant academic research and scientific papers
Synthesis of Chlorotrifluoromethylated Pyrrolidines by Electrocatalytic Radical Ene-Yne Cyclization
Ye, Ke-Yin,Song, Zhidong,Sauer, Gregory S.,Harenberg, Johannes H.,Fu, Niankai,Lin, Song
supporting information, p. 12274 - 12279 (2018/08/31)
The stereoselective synthesis of chlorotrifluoromethylated pyrrolidines was achieved using anodically coupled electrolysis, an electrochemical process that combines two parallel oxidative events in a convergent and productive manner. The bench-stable and
Palladium-catalyzed oxidative 6-exo-trig cyclization of 1,6-enynes: Facile synthesis of bicyclo[4.1.0]heptan-5-ones
Liu, Bang,Song, Ren-Jie,Ouyang, Xuan-Hui,Li, Yang,Hu, Ming,Li, Jin-Heng
supporting information, p. 12819 - 12822 (2015/08/06)
We here describe a new palladium-catalyzed oxidative 6-exo-trig cyclization of 1,6-enynes at room temperature using tBuONO as an oxidant for the synthesis of 3-bicyclo[4.1.0]heptan-5-ones. This cascade strategy involves the hydration, cyclization and cycl
Cyclometalated N-heterocyclic carbene-platinum catalysts for the enantioselective cycloisomerization of nitrogen-tethered 1,6-enynes
Jullien, Helene,Brissy, Delphine,Sylvain, Remy,Retailleau, Pascal,Naubron, Jean-Valere,Gladiali, Serafino,Marinetti, Angela
, p. 1109 - 1124 (2011/07/09)
Platinum(II) complexes which combine six-membered N-heterocyclic carbene-containing metallacyclic units and monodentate chiral phosphines have been prepared. The key step of their synthesis is the intramolecular oxidative addition of N-2-iodobenzylimidazo
Enantioselective IrI-catalyzed carbocyclization of 1,6-enynes by the chiral counterion strategy
Barbazanges, Marion,Auge, Mylene,Moussa, Jamal,Amouri, Hani,Aubert, Corinne,Desmarets, Christophe,Fensterbank, Louis,Gandon, Vincent,Malacria, Max,Ollivier, Cyril
, p. 13789 - 13794 (2012/01/06)
Enantioenriched bicyclo[4.1.0]hept-2-enes were synthesized by Ir I-catalyzed carbocyclization of 1,6-enynes. No chiral ligands were used, CO and PPh3 were the only ligands bound to iridium. Instead, the stereochemical information was
(Pentamethylcyclopentadienyl)iridium dichloride dimer {[IrCp*Cl 2]2}: A novel efficient catalyst for the cycloisomerizations of homopropargylic diols and N-tethered enynes
Benedetti, Erica,Simonneau, Antoine,Hours, Alexandra,Amouri, Hani,Penoni, Andrea,Palmisano, Giovanni,Malacria, Max,Goddard, Jean-Philippe,Fensterbank, Louis
supporting information; experimental part, p. 1908 - 1912 (2011/10/05)
(Pentamethylcyclopentadienyl)iridium dichloride dimer {[IrCp*Cl 2]2}-catalyzed hydroalkoxylation of bis-homopropargylic alcohols provides an efficient access to dioxabicyclo[2.2.1]ketals. The cycloisomerizations proceed under mild conditions, with low catalytic loadings and short reaction times. This new protocol involving an Ir(III) catalyst also promoted the cycloisomerization of nitrogen-tethered 1,6-enynes to give azabicyclo[4.1.0]heptenes, enhancing the synthetic potential of our method. Copyright
Radical cyclizations terminated by Ir-Catalyzed hydrogen atom transfer
Gansaeuer, Andreas,Otte, Matthias,Shi, Lei
supporting information; experimental part, p. 416 - 417 (2011/04/16)
A system for coupling catalytic radical cyclization and Ir-catalyzed hydrogen atom transfer (HAT) is described. It is essential that the HAT catalyst activates H2 quickly and is not a hydrogenation catalyst. Vaska's complex was found to fulfill both purpo
Enantioselective construction of quaternary carbon centers by catalytic [2 + 2 + 2] cycloaddition of 1,6-enynes and alkynes
Shibata, Takanori,Arai, Yoshikazu,Tahara, Yu-Ki
, p. 4955 - 4957 (2007/10/03)
(Chemical Equation Presented) The enantioselective [2 + 2 + 2] cycloaddition of 1,6-enynes and alkynes using chiral rhodium catalysts gave cycloadducts containing quaternary carbon stereocenters. Both symmetrical and unsymmetrical alkynes and acetylene co
Effects of substituents on the multiple bonds on ring-closing metathesis of enynes
Kitamura, Tsuyoshi,Sato, Yoshihiro,Mori, Miwako
, p. 678 - 693 (2007/10/03)
In ring-closing metathesis (RCM) reactions of enynes, the substituents on the multiple bonds are quite important. Although RCM of an enyne having a monosubstituted alkene proceeds smoothly using the first-generation ruthenium-carbene complex 1a, that of a
