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Beilstein J. Org. Chem. 2022, 18, 25–36, doi:10.3762/bjoc.18.3
Graphical Abstract
Figure 1: Selected examples of natural products and drugs possessing the indane scaffold.
Scheme 1: Known strategies and conceptual advance of this contribution.
Figure 2: Selected examples of bioactive spirobarbiturates.
Figure 3: The screened organocatalysts.
Scheme 2: Substrate scope of 2-isothiocyanato-1-indanones. The reactions were carried out with 1 (0.12 mmol), ...
Scheme 3: Substrate scope of barbiturate-based olefins. The reactions were carried out with 1a (0.12 mmol), 2...
Figure 4: X-ray crystal structure of 3ae (displacement ellipsoids are drawn at the 50% probability level).
Scheme 4: Gram-scale synthesis of 3ah.
Scheme 5: Further transformation of 3ah.
Scheme 6: One-pot three-component reaction.
Scheme 7: Proposed reaction mechanism.
Beilstein J. Org. Chem. 2013, 9, 1210–1216, doi:10.3762/bjoc.9.137
Figure 1: Diphenylamine-linked bis(oxazoline).
Figure 2: X-ray crystal structure of the major diastereomer of 3g (one symmetric molecule and two solvent mol...
Scheme 1: The transformation of Friedel–Crafts alkylation product 4a to cycloadduct 3a.