Yasuda, Shigeo; Kawaguchi, Yasuaki; Okamoto, Yuta; Mukai, Chisato published the artcile< Chemo- and Regioselective Rhodium(I)-Catalyzed [2+2+2] Cycloaddition of Allenynes with Alkynes>, SDS of cas: 139139-93-8, the main research area is allenyne alkyne rhodium cycloaddition catalyst; benzene fused bicyclic preparation; alkynes; allenes; cycloaddition; regioselectivity; rhodium.
A highly chemo- and regioselective partially intramol. rhodium(I)-catalyzed [2+2+2] cycloaddition of allenynes with alkynes is described. A range of diverse polysubstituted benzene derivatives could be synthesized in good to excellent yields, in which the allenynes served as synthetic equivalent to the diynes. A high regioselectivity could be observed when allenynes were treated with unsym. alkynes.
Chemistry – A European Journal published new progress about [2+2+2] Cycloaddition reaction. 139139-93-8 belongs to class chiral-phosphine-ligands, and the molecular formula is C44H40P2, SDS of cas: 139139-93-8.
Referemce:
Phosphine ligand,
Chiral phosphine ligands in asymmetric synthesis. Molecular structure and absolute configuration of (1,5-cyclooctadiene)-(2S,3S)-2,3-bis(diphenylphosphino)butanerhodium(I) perchlorate tetrahydrofuran solvate