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Beilstein J. Org. Chem. 2022, 18, 1649–1655, doi:10.3762/bjoc.18.177
Examples of approved spirocyclic drugs.
(a) Earlier reported Rh(II)-catalyzed spirocyclization of DAS with the formation of minor enol ethe...
Initial attempt at Rh(II)-catalyzed O–H insertion/Claisen rearrangement.
Rh2(esp)2-catalyzed O–H insertion reactions between various DAS 1 and phenols.
Two-step, one-pot sequence of the Claisen rearrangement/intramolecular Michael-type spirocyclizatio...
Tentative rationalization of the diastereoselectivity observed in all 5→7 transformations (shown fo...
Beilstein J. Org. Chem. 2022, 18, 533–538, doi:10.3762/bjoc.18.55
Previously reported transformations of DAS (1) and their unusual dimerization investigated in this ...
The result of Rh(II)-catalyzed decomposition of DAS 1r.
Plausible mechanism for the formation of dimer 2a and indene 3a through the Rh(II)-catalyzed decomp...
Cytotoxicity of N-alkyl-substituted dibenzoazulenodipyrroles 2 against the A549 human lung adenocar...