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Beilstein J. Org. Chem. 2023, 19, 1811–1824, doi:10.3762/bjoc.19.133
Graphical Abstract
Figure 1: Application of cinchona squaramide 1 and recyclable, lipophilic cinchona squaramide organocatalysts ...
Scheme 1: Synthesis of demethylated cinchona squaramide organocatalyst and the incorporation of the flexible ...
Scheme 2: Synthesis of the lipophilic tag from methyl gallate (8) and attachment to the cinchona squaramide.
Figure 2: Classification of the tested non-polar solvents according to the GSK’s solvent sustainability guide ...
Figure 3: Recycling of the lipophilic organocatalyst in the stereoselective Michael addition by replacing the...
Scheme 3: A new, stereoselective synthetic route for baclofen.
Scheme 4: Gram-scale synthesis of (S)-baclofen hydrochloride.