Tetrahedron Letters p. 5021 - 5024 (1989)
Update date:2022-08-02
Topics:
Modric, Nevenka
Drake, A. F.
Poje, M.
Availability of both diastereomers of 1-(-)-menthoxy-2,4-dimethyl-3,7-dioxo-2,4,6,8-tetraazabicyclo<3.3.0>octane (5) through decarboxylative rearrangement of 5-(-)-menthoxy-1,3-dimethyl isouric acid (1) allowed the access to both enantiomers of 1,3-dimethylallantoin (6); circular dichroism spectra of the related homologues (-)-6a and (-)-allantoin proved their corresponding R-configurations.
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Doi:10.1039/a701122i
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(2010)
