Formula: C24H40N4O4Rh2. The fused heterocycle is formed by combining a benzene ring with a single heterocycle, or two or more single heterocycles. Compound: Dirhodium(II) tetrakis(caprolactam), is researched, Molecular C24H40N4O4Rh2, CAS is 138984-26-6, about Highly selective enantiomer differentiation in intramolecular cyclopropanation reactions of racemic secondary allylic diazoacetates.. Author is Doyle, Michael P.; Dyatkin, Alexey B.; Kalinin, Alexey V.; Ruppar, Daniel A.; Martin, Stephen F.; Spaller, Mark R.; Liras, Spiros.
Highly efficient enantiomer differentiation of racemic secondary allylic diazoacetates in intramol. cyclopropanation reactions has been achieved using chiral dirhodium(II) carboxamidates. Dirhodium(II) tetrakis[methyl 2-oxazolidinone-4(S or R)-carboxylate], Rh2(4S-MEOX)4 or Rh2(4R-MEOX)4, provides the highest levels of enantiomer selectivity in cyclizations of racemic 2-cycloalken-1-yl diazoacetates affording enantiomeric excesses of 94-95% (C5 and C6) or 83% (C7). In reactions catalyzed by Rh2(4S-MEOX)4, (1S)-cycloalk-2-en-1-yl diazoacetates undergo cyclopropanation, whereas (1R)-cycloalk-2-en-1-yl diazoacetates form 2-cycloalkenones and 1-methylene-2-cycloalkenes. The mirror image isomers are formed from reactions catalyzed by Rh2(4R-MEOX)4. Thus, refluxing 2-cyclohexen-1-yl diazoacetate (I) with Rh2(4S-MEOX)4 in CH2Cl2 gave a 40% yield of bicyclic lactone (II) in 94% enantiomeric excess.
In some applications, this compound(138984-26-6)Formula: C24H40N4O4Rh2 is unique.If you want to know more details about this compound, you can contact with the author or consult more relevant literature.
Reference:
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