16900-65-5Relevant articles and documents
Benzannulation through Ruthenium(0)-Catalyzed Transfer Hydrogenative Cycloaddition: Precision Synthesis and Photophysical Characterization of Soluble Diindenoperylenes
Suravarapu, Sankar Rao,Parvathaneni, Sai Prathima,Bender, Jon A.,Roberts, Sean T.,Krische, Michael J.
, p. 7504 - 7510 (2020)
The first application of ruthenium(0)-catalyzed 1,2-dione-diyne [2+2+2] cycloaddition to PAH construction is achieved by the precision synthesis of soluble diindenoperylenes (DIPs), the electronic structures of which were investigated using steady-state a
A convergent formal [4 + 2] cycloaddition of 1,6-diynes and benzyl azides: Construction of spiro-polyheterocycles
Bao, Ming,Lu, Wei,Su, Han,Qiu, Lihua,Xu, Xinfang
supporting information, p. 3258 - 3265 (2018/05/22)
A convergent formal [4 + 2] cycloaddition reaction for the construction of structurally appealing spiro-tetrahydroquinolines has been developed, in which, a one-pot reaction is established for the in situ generation of two reagents, a cyclic alkyne and an
Iridium- and rhodium-catalyzed [2+2+2] cycloadditions of diynes with maleimide: A new synthetic route to highly substituted phthalimides
Alvarez, Leonardo X.,Bessières, Bernard,Einhorn, Jacques
experimental part, p. 1376 - 1380 (2009/04/06)
The [2+2+2] cycloaddition of maleimide with α,ω-diynes in the presence of [IrCl(cod)]2 or [RhCl(cod)]2 and DPPE gives cyclohexadiene derivatives which are readily aromatized with DDQ or MnO 2. This two-step procedure gives
Ir and Rh complex-catalyzed intramolecular alkyne-alkyne couplings with carbon monoxide and isocyanides
Shibata, Takanori,Yamashita, Koji,Katayama, Emi,Takagi, Kentaro
, p. 8661 - 8667 (2007/10/03)
Intramolecular [2+2+1] cycloaddition of diynes with carbon monoxide was catalyzed by Vaska's complex (IrCl(CO)(PPh3)2) or IrCl(cod)(dppp), and cyclopentadienones were obtained in good to high yields. The first catalytic synthesis of
Cyclisation of Acetylenecarboxylic Acid. Synthesis of γ-Methylenebutyrolactones
Yamamato, Makoto
, p. 582 - 587 (2007/10/02)
Various γ-exo-methylenebutyrolactones have been synthesized in excellent yield by the cyclisation of acetylenecarboxylic acids in the presence of a catalytic amount of mercury(II) oxide.Cyclisation of terminal acetylene compounds proceeded regioselectively to give γ-exo-methylenebutyrolactones as the sole product.Disubstituted acetylenes also gave the (Z)-configurational enol lactone, but small amounts of an (E)-isomer of a γ-exo-enol lactone and a δ-lactone (α-pyrone) were also formed.Spectral properties and stereochemistry of the exo-enol lactones are also discussed.