935758-69-3Relevant academic research and scientific papers
Ruthenium-Catalyzed Cycloisomerization of 1,6-Diynes with Styryl Terminals Leading to Indenylidene Cycloalkanes
Yamamoto, Yoshihiko,Nishimura, Kei-Ichiro,Shibuya, Masatoshi
, p. 1101 - 1107 (2017)
In the presence of a neutral ruthenium catalyst, Cp?RuCl(cod), 1,5,10-enediynes bearing a styryl terminal underwent cycloisomerization to afford exocyclic 1,3-dienes with an indenylidene moiety. The reaction mechanism is proposed on the basis of the results of control experiments and density functional calculations. The transformations of the obtained cyclization products were also investigated to demonstrate the synthetic potential of this method.
Synthesis of a novel chemotype via sequential metal-catalyzed cycloisomerizations
Leng, Bo,Chichetti, Stephanie,Su, Shun,Beeler, Aaron B.,Porco Jr., John A.
supporting information, p. 1338 - 1343,6 (2020/08/31)
Sequential cycloisomerizations of diynyl o-benzaldehyde substrates to access novel polycyclic cyclopropanes are reported. The reaction sequence involves initial Cu(I)-mediated cycloisomerization/nucleophilic addition to an isochromene followed by diastereoselective Pt(II)-catalyzed enyne cycloisomerization.
Enantioselective synthesis of C2-symmetric spirobipyridine ligands through cationic Rh(I)/modified-BINAP-catalyzed double [2 + 2 + 2] cycloaddition
Wada, Azusa,Noguchi, Keiichi,Hirano, Masao,Tanaka, Ken
, p. 1295 - 1298 (2007/10/03)
Figure presented Enantioenriched C2-symmetric spirobipyridine ligands were efficiently synthesized through a cationic rhodium(I)/(R)-Segphos or (R)-H8-BINAP complex-catalyzed enantioselective intramolecular double [2 + 2 + 2] cycload
