29577-30-8Relevant academic research and scientific papers
Synthesis of Isobenzofuranones by Cobalt Catalyzed [2+2+2] Cycloaddition
B?hme, Matthias,Leino, Reko,Méndez-Gálvez, Carolina,Savela, Risto
, (2020/03/13)
Highly regioselective cobalt catalyzed [2+2+2] cycloaddition of diynes and monoynes to afford isobenzofuranones in good yields is described. The reaction proceeds in the presence of cheap and readily available cobalt catalyst with a sterically hindered pyridine-2,6-diimine ligand. Applicability of the method can also be extended to the synthesis of isoindolinones.
Synthesis of chiral 3-substituted phthalides via rhodium(I)-catalyzed crossed alkyne cyclotrimerisation
Witulski, Bernhard,Zimmermann, Axel
, p. 1855 - 1859 (2007/10/03)
3-Substituted phthalides were synthesized for the first time by crossed alkyne cyclotrimerisations with Wilkinson's catalyst. Esterification of propiolic acids with chiral propargylic alcohols by either the DCC/DMAP or the Mitsunobu method allows the synt
