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Beilstein J. Org. Chem. 2025, 21, 2297–2301, doi:10.3762/bjoc.21.175
Graphical Abstract
Figure 1: Halogen-containing butyrolactone-derived bioactives.
Scheme 1: Preparation of chlorinated and brominated lactones 8a,b and 11a,b.
Scheme 2: Preparation of fluorinated lactone 14.
Scheme 3: Fluorination of LGO (5) and conversion to lactone 17.
Scheme 4: Trifluoromethylation of 9a,b and 15 and subsequent Baeyer–Villiger oxidation.
Beilstein J. Org. Chem. 2024, 20, 823–829, doi:10.3762/bjoc.20.74
Figure 1: Previous work on migration reactions in 6,8-dioxabicyclooctan-4-ols [18].
Scheme 1: Structures for 10a–c, preparation of 10d–f, and X-ray structure of 10e.
Scheme 2: Rearrangement reactions for 10a–f promoted by SOCl2.
Scheme 3: Reactions of allylic alcohols 15 and 18 with SOCl2.
Scheme 4: Appel reactions of dioxabicyclo[3.2.1]octan-4-ols 10a,e,f and 15.
Scheme 5: Some transformations for the skeletal rearrangement products 11a and 12a and X-ray structure for 24....
Figure 2: Mechanism for the rearrangement of 10, and Newman projection and the X-ray structure of 10d project...