Mo-Catalyzed Asymmetric Synthesis of Dihydrofurans. Catalytic Kinetic Resolution and Enantioselective Desymmetrization through Ring-Closing Metathesis was written by La, Daniel S.;Alexander, John B.;Cefalo, Dustin R.;Graf, David D.;Hoveyda, Amir H.;Schrock, Richard R.. And the article was included in Journal of the American Chemical Society in 1998.Reference of 205927-03-3 This article mentions the following:
The first catalytic and enantioselective synthesis of chiral heterocycles effected through the use of chiral molybdenum metathesis catalysts was presented. The molybdenum-catalyzed desymmetrization process was very effective. For example, the chiral molybdenum-catalyzed resolution and ring-closing metathesis of 2-methyl-3-[(2-propenyl)oxy]-1-octene resulted in the formation of (S)-2-methyl-3-[(2-propenyl)oxy]-1-octene and (R)-2,5-dihydro-3-methyl-2-pentylfuran. In the experiment, the researchers used many compounds, for example, (S)-3,3′-Di-tert-butyl-5,5′,6,6′-tetramethylbiphenyl-2,2′-diol (cas: 205927-03-3Reference of 205927-03-3).
(S)-3,3′-Di-tert-butyl-5,5′,6,6′-tetramethylbiphenyl-2,2′-diol (cas: 205927-03-3) belongs to copper catalysts. Copper has continued to be one of the most utilized and important transition metal catalysts in synthetic organic chemistry. Copper nanoparticles can also catalyze the coupling reaction of nitrogen-containing nucleophiles, phenols, thiols, xanthogenates, selenium ruthenium nucleophiles and the like.Reference of 205927-03-3
Referemce:
Copper catalysis in organic synthesis – NCBI,
Special Issue “Fundamentals and Applications of Copper-Based Catalysts”